Army of Two: The Devil's Cartel's more serious direction has been explained by developer Visceral Games.
"We're under Visceral's offices now, so that means injecting a bit more story and serious tone," he said producer James Nance.
"We're known for Dead Space, now we want to be known for this as well. It's about quality and bringing epic moments to bear.
"Part of that was having the franchise grow up a little bit. The old Army games had humour and we have humour too in a buddy cop sense, and we use the humour to alleviate tension, because the storyline gets serious at times."
He continued: "But we wanted to move away from the fist-bumping, frat boy-type hero we had before, because some people found it really funny and really charming, but it didn't resonate with everybody.
"We think that we're broadening our audience and our appeal by bringing it up a little bit."