I don't care about the movie, but recently I learned that there was an issue of the comic where he was fighting this attractive female and got a boner, and because the suit conforms to his body it wrapped itself around his erection and the woman he was fighting was weirded out by his big blue boner and stopped the fight.
Maybe they could include that in the sequel 
"I think Call of Duty resonates because it's believable and relatable," Sledgehammer Games cofounder Michael Condrey says.
Believable and relatable...Yep, sounds like Call of Duty