1. Fallout 3, by itself, was able to get to the main menu fine.
2. Fallout 3 with the Operation Anchorage and The Pitt combo disc installed worked fine as well.
3. Fallout 3 with FOMM and FOSE did too.
4. Fallout 3 with all that as well as FOOK 2 worked.
5. And it worked with FOOK 2, MMM and the Interoperability patch, with the load order arranged correctly.
6. But when I tried to install WMK, it produced the same problem that I described above.
So I uninstalled WMK and continued installing the other mods I had that weren't nearly as large, arranged them correctly in the load order, and started Fallout 3. Starting a new game, everything worked fine until I left the Vault, upon which it crashed to desktop. I loaded the autosave and starting walking from the Vault north, to the Pitt, but after only a few seconds of walking it crashed again. I reloaded it again, and crashed again, a few times until I started fiddling with the graphics settings, but nothing stopped the crashing. I then proceeded to uncheck from my load order everything associated with MMM, Street Lights, DarNified UI and the Automatic Patch I had made. When I started again, the crashing stopped, though DarNified UI was still active somehow. When I tried to turn back on DarNified UI the freezing at the first slide problem happened again, so I left it unchecked (even though it was still working in the game). I then proceeded to The Pitt, and even though it occasionally lagged for a few moments before going back to normal, everything worked fine. I then made it far enough into the quest to get into the Steelyard, but at one point when I attempted to open a medical kit inside one of the buildings, it froze. I assumed this was due to me Alt-Tabbing a few moments before that in order to close a pop-up from a program, but when I tried to load Fallout 3 again the freezing at the slide issue happened again. The only difference this time is I was somehow able to use CTRL+ALT+DELETE to close it. Now I don't want to try again without finding the cause, and I'm hoping someone can help. Here's my load order, with the mods I don't have activated in red:
Spoiler
[X] Fallout3.esm
[X] Anchorage.esm
[X] ThePitt.esm
[X] Mart's Mutant Mod.esm
[X] Unofficial Fallout 3 Patch.esm
[X] DCInteriors_ComboEdition.esm
[X] BackToAnchorage.esm
[X] StreetLights.esm
[X] Project Genesis.esm
[X] CALIBR.esm
[X] FOOK2 - Main.esm
[X] FOOK2 - [[censored]] World And Neighbourhood Kit.esm
[X] FOOK2 - Main.esp
[X] FOOK2 - [EVE] Energy Visuals Enhanced.esp
[X] MyFOOK2 - Black & White Tranquility Lane.esp
[X] MyFOOK2 - No [censored] Victims.esp
[X] Mart's Mutant Mod.esp
[X] Unofficial Fallout 3 Patch - Operation Anchorage.esp
[X] Unofficial Fallout 3 Patch - The Pitt.esp
[X] 1PipboyPDA.esp
[X] The Pitthouse.esp
[X] DarNifiedUIF3.esp
[X] UPP - Pack 1.esp
[X] UPP - Pack 2.esp
[X] UPP - Original Perks.esp
[X] UPP - Beverage Perks.esp
[X] UPP - Quest Perks.esp
[X] UPP - Experience Perks.esp
[X] Keep Anchorage Equipment.esp
[X] Chimera.esp
[X] A Place to Stay in Anchorage.esp
[X] A Place to Stay in The Pitt.esp
[X] Gary23sfate.esp
[X] Dree Perks.esp
[X] Dree Perks Anchorage.esp
[X] Dree Perks Pitts.esp
[X] Dree Perks Requested by Fans .esp
[X] Kings Spider Drones.esp
[X] SolarScorcher.esp
[X] JohnnyAppleseed.esp
[X] Regulators.esp
[X] Mart's Mutant Mod - FOOK2.esp
[X] Mart's Mutant Mod - Master Menu Module.esp
[X] Mart's Mutant Mod - Tougher Traders.esp
[X] Mart's Mutant Mod - Natural Selection.esp
[X] Mart's Mutant Mod - DLC Anchorage.esp
[X] Mart's Mutant Mod - DLC The Pitt.esp
[X] Automatic Patch 1 January 20 2011.esp
[X] Anchorage.esm
[X] ThePitt.esm
[X] Mart's Mutant Mod.esm
[X] Unofficial Fallout 3 Patch.esm
[X] DCInteriors_ComboEdition.esm
[X] BackToAnchorage.esm
[X] StreetLights.esm
[X] Project Genesis.esm
[X] CALIBR.esm
[X] FOOK2 - Main.esm
[X] FOOK2 - [[censored]] World And Neighbourhood Kit.esm
[X] FOOK2 - Main.esp
[X] FOOK2 - [EVE] Energy Visuals Enhanced.esp
[X] MyFOOK2 - Black & White Tranquility Lane.esp
[X] MyFOOK2 - No [censored] Victims.esp
[X] Mart's Mutant Mod.esp
[X] Unofficial Fallout 3 Patch - Operation Anchorage.esp
[X] Unofficial Fallout 3 Patch - The Pitt.esp
[X] 1PipboyPDA.esp
[X] The Pitthouse.esp
[X] DarNifiedUIF3.esp
[X] UPP - Pack 1.esp
[X] UPP - Pack 2.esp
[X] UPP - Original Perks.esp
[X] UPP - Beverage Perks.esp
[X] UPP - Quest Perks.esp
[X] UPP - Experience Perks.esp
[X] Keep Anchorage Equipment.esp
[X] Chimera.esp
[X] A Place to Stay in Anchorage.esp
[X] A Place to Stay in The Pitt.esp
[X] Gary23sfate.esp
[X] Dree Perks.esp
[X] Dree Perks Anchorage.esp
[X] Dree Perks Pitts.esp
[X] Dree Perks Requested by Fans .esp
[X] Kings Spider Drones.esp
[X] SolarScorcher.esp
[X] JohnnyAppleseed.esp
[X] Regulators.esp
[X] Mart's Mutant Mod - FOOK2.esp
[X] Mart's Mutant Mod - Master Menu Module.esp
[X] Mart's Mutant Mod - Tougher Traders.esp
[X] Mart's Mutant Mod - Natural Selection.esp
[X] Mart's Mutant Mod - DLC Anchorage.esp
[X] Mart's Mutant Mod - DLC The Pitt.esp
[X] Automatic Patch 1 January 20 2011.esp
Help?