Resistance devs have fooled around with the double-barreled shotgun’s alternate fire the last two games, first letting both barrels fire at the same time (yawn) and then trying a one-after-the-other blast (a bit cooler). This time? Try a grenade launcher alternate fire, giving you serious bang in a firefight. Upgrade the Rossmore, and it moves even farther from traditional shotgun fare, firing incendiary rounds that burn through the Chimera.