Well, here is my squad :
Me as The Commander (Since I am an Ukranian, I am perfect at eveything)
Ramirez from CoDMW2 (this guy can do EVERYTHING, just give him a proper order)
Rachel from Ninja Gaiden Sigma (I'm always need someone looking pretty in my team)
Gen. Vance M. Stubbs (He's a good supplier: to be able to lose 100 Baneblades, you have to FIND these 100 Baneblades first)
Sean Devlin from The Saboteur (just give him a good amount of booze and you will get the best demolition expert ever !)
BJ Blazkovic from Wolfenstein (He's the best agent ever : he manages to detonade whole research centres, kill thousands of enemy troops and manages to stay undetected after operations, even without leaving the enemy's city !)
Ben "Yahtzee" Croshaw (my squad will need a jackass, who won't be able to do anything right and will be hated though the whole stoping the alien invasion thing, but at the very end he will accidentaly die, which my squad will confuse for sacrifice. Nobody, but Yahtzee could be fitted in this roll better)