Ok, so I just installed the entire FCOM package (almost), and now I got crashes every time I Fast Travel to or Exit to outside Bravil and Leyawiin, maybe other areas as well (haven't traveled everywhere), but I could go outside of Skingrad and Cheydinhal without problems. Here's my load order, it is pretty much as BOSS sorted it:

Active Mod Files:00  Oblivion.esm01  Francesco's Leveled Creatures-Items Mod.esm02  Francesco's Optional New Items Add-On.esm03  Oscuro's_Oblivion_Overhaul.esm  [Version 1.34]04  Mart's Monster Mod.esm  [Version 3.7b3p3]05  FCOM_Convergence.esm  [Version 0.9.9a7]06  Unofficial Oblivion Patch.esp  [Version 3.2.0]07  UOP Vampire Aging & Face Fix.esp  [Version 1.0.0]08  Oblivion Citadel Door Fix.esp09  DLCShiveringIsles.esp0A  Unofficial Shivering Isles Patch.esp  [Version 1.4.0]0B  Francesco's Optional Chance of Stronger Bosses.esp0C  Francesco's Optional Chance of Stronger Enemies.esp0D  Francesco's Optional Chance of More Enemies.esp0E  Francesco's Optional Leveled Quests-SI only.esp0F  Francesco's Optional Leveled Guards.esp++  FCOM_Francescos.esp  [Version 0.9.9]++  FCOM_FrancescosItemsAddOn.esp  [Version 0.9.9]10  FCOM_FrancescosNamedBosses.esp  [Version 0.9.9]11  DLCHorseArmor.esp12  DLCHorseArmor - Unofficial Patch.esp  [Version 1.0.5]13  DLCOrrery.esp14  DLCOrrery - Unofficial Patch.esp  [Version 1.0.3]15  DLCMehrunesRazor.esp16  DLCMehrunesRazor - Unofficial Patch.esp  [Version 1.0.4]17  DLCSpellTomes.esp++  DLCSpellTomes - Unofficial Patch.esp  [Version 1.0.1]18  Slof's Oblivion Robe Trader.esp19  Bob's Armory Oblivion.esp1A  FCOM_BobsArmory.esp  [Version 0.9.9]1B  Oblivion WarCry EV.esp1C  FCOM_WarCry.esp  [Version 0.9.9]1D  Oscuro's_Oblivion_Overhaul.esp  [Version 1.34]1E  FCOM_Convergence.esp  [Version 0.9.9]1F  FCOM_RealSwords.esp  [Version 0.9.9]++  FCOM_SpawnRatesReduced.esp  [Version 0.9.9]20  Mart's Monster Mod - More Wilderness Life.esp  [Version 3.7b3p3]++  FCOM_SaferRoads.esp  [Version 0.9.9]++  Mart's Monster Mod - Looting NPCs & Creatures.esp  [Version 3.7b3p3]++  Mart's Monster Mod - Less Bone Loot.esp  [Version 3.7b3p3]21  Mart's Monster Mod - Dungeons of MMM.esp  [Version 3.7b3p3]22  Mart's Monster Mod - Hunting & Crafting.esp  [Version 3.7b3p3]23  Mart's Monster Mod - Diverse WaterLife.esp  [Version 3.7b3p3]24  Mart's Monster Mod - Safer Quest Locations.esp  [Version 3.7b3p3]25  Knights.esp26  Knights - Unofficial Patch.esp  [Version 1.0.9]++  FCOM_Knights.esp  [Version 0.9.9]++  FCOM_SlofsRobeTrader.esp  [Version 0.9.9]++  Mart's Monster Mod - Resized Races.esp  [Version 3.7b3p3]27  Streamline 3.1.esp28  Bashed Patch, 0.esp

It is more informative to http://sites.google.com/site/oblivionpoinfo/walkthroughs/posting-your-load-order with Wrye Bash, for future reference.

You are missing some FCOM plugins. Reference the http://devnull.sweetdanger.net/fcomloadorder.html. This is the beginning of the FCOM part of my guide: http://sites.google.com/site/oblivionpoinfo/walkthroughs/baininstallguide/fcom-0-introduction-to-fcom. It is for BAIN installation but contains information pertinent to any FCOM setup.

Ehr, I'm am Not missing any mod from the FCOM Basic Load Order list? Anyway, ok, I pasted it from Wry Bash instead. But as I said, the load order is exactly as FCOM says it should be, except for the fact that I use a few more mods (which I supposedly should be able to use, according to http://devnull.sweetdanger.net/fcomoptions.html.

23 Mart's Monster Mod - Diverse WaterLife.esp [Version 3.7b3p3]

There's a fix for this one in the MMM thread, and I notice you are crashing in water locations and not in dry locations. I'd get that fix first and see if it helps.

Also, grab the Unofficial FCOM release in the FCOM thread. It was adjusted to increase compatibility with MMM 3.7pr3

The load order you have there now looks much different than what I was looking at before. Try turning of Looting Npcs & Creatures if the WaterLife update does not resolve your issue entirely.

Hmm, ok, I'll try that, but I just noticed another problem: I suddenly got missing meshes. Any ideas?

If I had to take a wild guess, I would assume you are missing MMM's textures. Read the "BSA Loading" section: http://sites.google.com/site/oblivionpoinfo/walkthroughs/baininstallguide/part-viii-install-mods-preparation. What are you installing your mods with, by the way?

OBMM (with help from BOSS and Wrye Bash).

I think you might be right though, I didn't really get how I would install the MMM BSA (I did not install it as a OMOD), so it is very possible that I did it wrong, even guessing the best I could.

EDIT: Ok, removing the Diverse Waterlife esp fixed the crashes. Thx very much =) Now I'm just gonna try to get the meshes working.

BSA file just has to be dumped into the DATA directory and renamed "FCOM_Convergence_MMM.bsa"

=) Then the problem might be easily solved, since I renamed it Mart's Monster Mod. I'll try it and get back to you.

EDIT: It works =D=D Thank you both very much =) Now, FCOM is done, then it's only the other 20 GB mods left x_x

Don't forget to add the plugin if you do not use SI! ^__^

BTW, Diverse Waterlife is very nice, and the fixed version is very different from the one you had. A major flaw was located and fixing that actually made the entire thing work better.

Well, I tried the update as well, but it didn't help, which is why I removed it entirely...

Did you try the above? Or did removing Diverse WaterLife actually solve your problem?

Oh, no, I didn't try it. But removing Waterlife solved the problem, yes...

Having the MMM.bsa misnamed is pretty much guaranteed to cause crashes in some areas. Now that you've fixed the BSA (and after you've updated the FCOM package to the unofficial update) I'd give it a try again. The fish variety is nice and very much needed.

Tried again and now it works. Though... >_> Are the fishes supposed to just sit there on the bottom of the lake? Or try to swim up on the shore? xD Anyway, is it safe to combine this mod with some other that adds some vegetation (OOO - Water Weeds etc)?

I am 99% any OOO modules is okay to use with FCOM. That is not the case for MMM, but the MMM thread is pretty helpful for figuring out those exceptions. Just not that adding a bunch of fish and water weed mods can add up to FPS drops pretty quickly. The only mod you absolutely should not use is Fish!. I had problems with the slaughterfish not attacking as well, but that might have been due to OOO being tagged under "Factions" and "Relations" in the bashed patch, now that I think about it...

The fish will swim around a bit. And some will prey on others. If they go up on shore, the script is supposed to disable them.

The added fish from the DiverseWaterlife plugin actually swim more than the vanilla SlaughterFish.

Ok, nice. Well, I didn't see much of the fishes, just became a bit confounded when the First thing I saw was a fish making it's merry way up the shore =P Anyway, it seems to work perfectly now though, I guess I'll just play it for a while to see if I get any more crashes or anything, and if all is green I'll add the rest of the mods =)

Hmm, ok, I'll bump this, cuz now I got missing meshes again... Load order now:

Active Mod Files:00  Oblivion.esm01  All Natural Base.esm  [Version 0.9.9]02  Francesco's Leveled Creatures-Items Mod.esm03  Francesco's Optional New Items Add-On.esm04  Oscuro's_Oblivion_Overhaul.esm  [Version 1.34]05  Mart's Monster Mod.esm  [Version 3.7b3p3]06  FCOM_Convergence.esm  [Version 0.9.9MB3]07  Better Cities Resources.esm08  bookplacing.esm  [Version 1]09  Progress.esm  [Version 2.2]0A  HorseCombatMaster.esm0B  Lattamerv3.esm0C  Jog_X_Mod.esm0D  Unofficial Oblivion Patch.esp  [Version 3.2.0]0E  UOP Vampire Aging & Face Fix.esp  [Version 1.0.0]0F  Oblivion Citadel Door Fix.esp10  DLCShiveringIsles.esp11  Unofficial Shivering Isles Patch.esp  [Version 1.4.0]12  Better Cities .esp13  Francesco's Optional Chance of Stronger Bosses.esp14  Francesco's Optional Chance of Stronger Enemies.esp15  Francesco's Optional Chance of More Enemies.esp16  Francesco's Optional Leveled Quests-SI only.esp17  Francesco's Optional Leveled Guards.esp++  FCOM_Francescos.esp  [Version 0.9.9]++  FCOM_FrancescosItemsAddOn.esp  [Version 0.9.9]18  FCOM_FrancescosNamedBosses.esp  [Version 0.9.9]19  Natural_Habitat_by_Max_Tael.esp1A  All Natural - Real Lights.esp  [Version 0.9.9]1B  All Natural.esp  [Version 0.9.9]1C  All Natural - SI.esp  [Version 0.9.9]++  All Natural - EW + NW + AWS.esp  [Version Final]1D  Enhanced Water v2.0 HD.esp1E  Storms & Sound.esp1F  WindowLightingSystem.esp20  Book Jackets Oblivion - BP.esp21  ClocksOfCyrodiil_BC_OBC_OC_OCLR_Vanilla.esp22  DLCHorseArmor.esp23  DLCHorseArmor - Unofficial Patch.esp  [Version 1.0.5]24  DLCOrrery.esp25  DLCOrrery - Unofficial Patch.esp  [Version 1.0.3]26  DLCMehrunesRazor.esp27  DLCMehrunesRazor - Unofficial Patch.esp  [Version 1.0.4]28  DLCSpellTomes.esp++  DLCSpellTomes - Unofficial Patch.esp  [Version 1.0.1]++  MaleBodyReplacerV4.esp29  BlackLuster.esp2A  Slof's Oblivion Robe Trader.esp2B  Tona's_ModsStore.esp2C  Hentai_Compilation.esp2D  AT2 02-Shiki Armor Set.esp2E  SwordDancer.esp2F  Evantal's Dual Wielding.esp30  Bob's Armory Oblivion.esp31  FCOM_BobsArmory.esp  [Version 0.9.9]32  Oblivion WarCry EV.esp33  FCOM_WarCry.esp  [Version 0.9.9MB3]34  Oscuro's_Oblivion_Overhaul.esp  [Version 1.34]++  OOO-Water_Weeds.esp  [Version 1.33]35  FCOM_Convergence.esp  [Version 0.9.9Mb3]36  FCOM_RealSwords.esp  [Version 0.9.9]++  FCOM_SpawnRatesReduced.esp  [Version 0.9.9Mb3]37  Mart's Monster Mod - More Wilderness Life.esp  [Version 3.7b3p3]++  FCOM_SaferRoads.esp  [Version 0.9.9]++  Mart's Monster Mod - Looting NPCs & Creatures.esp  [Version 3.7b3p3]++  Mart's Monster Mod - Less Bone Loot.esp  [Version 3.7b3p3]38  Mart's Monster Mod - Dungeons of MMM.esp  [Version 3.7b3p3]39  Mart's Monster Mod - Hunting & Crafting.esp  [Version 3.7b3p3]3A  Mart's Monster Mod - Diverse WaterLife.esp  [Version 3.7b3p3f]3B  Mart's Monster Mod - Safer Quest Locations.esp  [Version 3.7b3p3]3C  Knights.esp3D  Knights - Unofficial Patch.esp  [Version 1.0.9]3E  Blood&Mud.esp3F  thievery.esp++  FCOM_Knights.esp  [Version 0.9.9Mb3]++  FCOM_SlofsRobeTrader.esp  [Version 0.9.9]40  FCOM_Blood&Mud.esp  [Version 0.9.9]41  xuldarkforest.esp  [Version 1.0.4]42  xulStendarrValley.esp  [Version 1.2.2]43  xulTheHeath.esp44  XulEntiusGorge.esp45  xulFallenleafEverglade.esp  [Version 1.3.1]46  xulColovianHighlands_EV.esp  [Version 1.2.1]47  xulChorrolHinterland.esp  [Version 1.2.2]48  xulBeachesOfCyrodiilLostCoast.esp  [Version 1.6.3]49  xulBravilBarrowfields.esp  [Version 1.3.2]4A  xulLushWoodlands.esp  [Version 1.3]4B  xulAncientYews.esp  [Version 1.4.2]4C  xulAncientRedwoods.esp  [Version 1.6]4D  xulCloudtopMountains.esp  [Version 1.0.3]4E  xulArriusCreek.esp  [Version 1.1.3]4F  xulAspenWood.esp  [Version 1.0.1]50  xulPatch_AY_AC.esp  [Version 1.1]51  xulRollingHills_EV.esp  [Version 1.3.2]52  xulPantherRiver.esp53  xulRiverEthe.esp  [Version 1.0.2]54  xulSkingradOutskirts.esp55  xulBrenaRiverRavine.esp  [Version 1.0.2]56  xulImperialIsle.esp  [Version 1.6.3]57  xulBlackwoodForest.esp58  xulCheydinhalFalls.esp  [Version 1.0.1]++  Book Placement v2.esp  [Version 2.0]59  Enhanced Vegetation [110%].esp5A  Alternative Start by Robert Evrae.esp5B  SpellSinger.esp5C  nGCD.esp++  nGCD Birthsigns.esp5D  nGCD Oghma Infinium.esp5E  ProgressMBSP.esp  [Version 2.0]5F  ProgressSBSP.esp  [Version 1.0]60  ProgressRBSP.esp  [Version 1.0]61  ProgressRacial.esp62  ProgressArmorer.esp  [Version 1.0]63  ProgressMercantile.esp  [Version 1.11]64  DMC Stylish - Specialanims.esp++  Mart's Monster Mod - Resized Races.esp  [Version 3.7b3p3]65  Nec Mystic High Elf-Remake.esp  [Version 1.0]66  Nec Mystic Dark Elf-Remake.esp  [Version 1.0]67  _Ren_BeautyPack_full.esp68  _Ren_BeautyPack_full_anime_voice.esp69  IDKRRR_C_race.esp6A  IDKRRR_C_race_Female_Anime_Voice.esp6B  IDKRRR_C_race_closed_mouth_version.esp6C  IDKRRR_C_race_Female_Anime_Voice_CMV.esp6D  Chocolate Elves.esp++  LattamerVoice.esp6E  LattamerV3_P-rrtyCure_Hair_Module.esp6F  Better Cities Full - B&M Edition.esp70  Better Cities - Full City Defences.esp71  Better Cities - Unique Landscape Barrowfields.esp72  Better Cities - Unique Landscape Chorrol Hinterland.esp73  Better Cities - Unique Landscape Cheydinhal Falls.esp74  Better Cities - Unique Landscape Skingrad Outskirts.esp75  Better Cities - Thievery.esp76  Better Imperial City.esp77  Better Cities - VWD of the IC.esp78  Streamline 3.1.esp79  Bashed Patch, 0.esp7A  Deadly Reflex 5 - Timed block and 150% damage.esp7B  DeadlyReflex 5 - Combat Moves.esp

I'm wondering if it might be only 1 mesh that is missing, since it seems like whatever it is, it can be carried by a character, if I would guess what it is I'd say it's a ring (since the Missing Mesh star follows the movements of the NPC's hand, and some of them are unarmed meaning that it is not a weapon). Though it's probably more than just 1 thing. Any ideas?

Are you using one of the "show rings" tweaks in the bashed patch? Some magic mods and mods like RGO use rings for various effects. Of course, since they are for AI packages or scripts or something, they do not have a "real" form. Try turning any "show rings" tweaks off. The "show amulets" tweaks seem to be okay to use because mods like those tend to use rings and not amulets...maybe because there is more than one slot for rings.

Nope, I'm not. Actually, I could be wrong, it might be a weapon hanging by the side of the char that is missing it's mesh, seems more likely. Anyway, is there no way to find out what mesh is missing, by the in-game console or w/e?

Download http://www.tesnexus.com/downloads/file.php?id=16704. It requires the later versions of OBSE. The problem could be a bad install on your part, or the mesh in question has a bad texture path. Sometimes modder's forget to make sure texture paths start at "textures" as opposed to a full path (i.e., "C:\Program Files\gamesas\Oblivion\Textures".) Report the issue to the author if it is his or her fault.

Edit: Read the readme carefully for the instructions. I have not used it in a while because I have not played Oblivion in a while. Plus, I have only used it for a short time since it was updated. It is very different from the version I was used to.

Thx, but I've figured out that whatever mod it is that has the "Decorated Fur Cuirass" (Francesco?) is the the one who is missing meshes. Searching for answers I came across someone who said I should rename "FraNewItems.BSA" to "DLCShiveringIsles - FraNewItems.BSA" to fix it. Just wanna hear someone else say that this is true =D