I have been having these crashing issues with cortex command.
First the game starts to lag and then it crashes saying ''Cortex Command.exe stopped working'', this happens after about 5 to 10 minutes gameplay.

Yes, bought the game in steam. (2nd time i bought this game, i was too lazy to find out what my email and password was, so i bought it in steam again to support data realms.)
Yes, everything works fine, until it starts to lag and finally crashes after 5-10 minutes.
Yes, searched for answers, didn't find any working solution.

No, it's not because of my mods, this happens without them.
No, reinstalling the game wont work, done that 7 times.
No, it's not about my computer, Win7 with HD 7950 with 3Gb GDDR3, 16Gb of DDR3 ram and 8-Core processor can handle any newest game on ultra.
No, not because of my drivers, happened on the old and with these new drivers.
No, ''Verify integrity of game cache'' doesn't work in steam.

Any solution for this that might help?
I really like the game and it's annoying if i can't even play it after buying it 2 times.

Check the console when it starts lagging, there might be some errors being thrown around. You can open up the console with the ~ key in the US layout, left of 1.
What game modes does this happen in?
Does this happen when some certain actor / gun / explosive is used?
Metagame or scenarios?
Are you the administrator? If not, try running it in compatibility mode.

Didn't see any errors.
Happens in every game mode.
No, happens with any character or gun, its random.
Yes, i'm running it as admin.

Anyone knows anything that might help?

Oh, i realized it will only crash on campaing.
In the free mode it starts to lag if i build much.. it shouldn't lag.

Any idea for that? There is something wrong with the campaing, and some serious lag problems.