Then youre going to be playing both sides about equally. Both sides have attack and defend missions.

If you meant "defending" as far as the story goes, it's still split between both sides. Like in container city, the resistance are defending a vaccine, while the security are trying to secure a bioweapon.

I'll elaborate a tad more, I basically meant that the Security were there from the start, and then...boom...all these guys turn up, start making more jobs for you, then all of a sudden they're revolting against you, so you're defending against them...but yeah, you could argue that the Resistance are defending themselves from the Security's oppression or whatever...but that's my biased view on the story, already picked my side...

Good point. You would expect heavier weapons to do more damage but maybe have longer reloads and switch speeds.

There is no actual side-picking in the game, though. You'll play each side just like Red and Blu, Spetznas and TF141, Helgast and ISA, Terrorists and Counter Terrorists.

Wrong, you pick your Campaign and are assigned into a Multiplayer match with players that are on the same mission as you, thus, you pick your side by picking which Campaign to play through...

Actually, you're wrong, or at least not completely right.

The Campaign is just one way to play. Players do not have to play through it, and can choose to play standard multiplayer matches instead. It's the same missions from the Campaign, without the story progressing - and players can switch teams, no there is no locked side. Every character you make, will have a Resistance and Security look that you can customize. And even if you choose to play the Campaign, what do you think happen when you beat it? You can go back with the same character and play through the other factions story - No character is ever locked into only playing one side.

...Huh...my apologies...I just thought, and when I say thought I mean made an assumption off of something said in an interview, that you could pick to be on a specific Team...I guess I was wrong, I would've preferred it this way, as pointless and insignificant as it is, I'd have liked to just played as Security...well, once I've done both Campaigns...

Final thing though, I heard from an interview...as old as it was, 2009...that you could choose to go through Campaign through Multiplayer, but he said that if you were to lose, that you would be re-assigned with other people that were on that specific mission, so you could re-attempt it so your Campaign progress is complete...so I just assumed that meant you were able to lock into a specific side...again, I was wrong, apologies...

just adding my 2 cents: i plan on playing on being a meduim because of its overall...value? the heavies and lights seem to not fit me beacuse i like to move fast but have health. i think ill be a meduim medic, resistance, with an assualt rifle

Hmm...just a suggestion, but if you did want to be a light for the agility, you could be a Medic and buff your health to roughly the same of that of a Medium Build...just a suggestion, something I'm contemplating...but then again, without the game, that's I damn can do...

if i was a light my health would be up but with a decrease in pip bars and because im a light i only have little pip so it would be a waste bwcause it only lasts for so long

If you choose to only play as one side you can, but it would be a completely optional choice by the player.

Ah, in that case we just kept misunderstanding each other...again, my apologies...but hey, now I get to be Security as a permanent fixture once I've ended both Campaigns...

Templar Veteran you should really just play security than resistance (or vise versa) so you can actually get a higher lvl so when you play through the securityx2 your more adapt. and as for teh playthroughs is it like borderlands where you can choose your playthrough, how many playthroughs are their, and teh enemies actually get tougher (offline)?

For offline I don't have a clue how the game acts, don't think they've really gone into detail about the AI becoming more developed over time...not a damn clue, but I could take a guess that the Mission objectives become more complex thus creating a damn bigger challenge...and as for the play-through's, I have no damn idea how that works either once you've completed them both...I assume, with no evidence at all, that you would just continue to support whatever Faction you chose through random Missions as you no longer need to complete specific missions to progress...
So fancy talk aside, I guess once you're done and don't switch, you just "Free-Play" missions for online...offline...no idea...

It's simple. There are 2 storylines: 1 for the resistance, one for the security. If you play singleplayer, multi or co-op campaign, you will follow the story in order. If you play objective, you will play either side, and do the same objectives as in the storymode, without the story.

It's attack vs. Defence and it doesn't really matter which side you play, unless if you're following the story.

This is partly incorrect.

In Campaign-mode, you'll play "your" side all the time.
In Stopwatch and Freeplay, you won't.

Also your avatar is able to play through both campaigns. So you don't have to decide which side you go with for that character.

That's a shame! I was kind of looking forward to having different characters for the different factions so i can use different play styles when playing each. (I like to make up a little personal back story with each of my characters :S)
Then again i guess i can just use the separate characters for different sides.

That you can indeed. Just play one side for each character if that is what you prefer.

You don't have to. Every character has a look for both the security and the resistance. Otherwise you couldn't switch teams during a match without choosing a new character (For example in stopwatch mode)