Reid Schneider, senior producer of Army of Two: The 40th Day, has told UK mag PSW that the team overstretched itself with the original game.
"If it's not a core focus of the game, then it doesn't really make sense to include it and with the first one, I think we got a little over-ambitious," he said.
The sequel, releasing across three formats this winter, is to pull back a little compared to the first title.
"We're trying to make something a little more grounded in reality," Schneider added.
"You're going to have waves of enemies and harder enemies to kill but the notion of boss fights... we did it a little bit in the first game but here we want to keep an air of credibility to the events."