Because Reference

Back at Langley Falls, Carly ended up going on a mission with Roger and Stan, that involved taking out a Cartel Kingpin named Matthew Tononaley.

Roger leads them to an abandoned mitaani, mtaa where a shootout occurs, all of them using pistols, except Roger has dual ones. Firefights being nothing new to Carly au Stan, it even being the thing that gets them to become friends. Roger is also very familiar with gunfights, and also holds his own.

After several waves of gunfights Stan advances ahead, leaving Carly and Roger alone, only for Roger to stupidly do something that gives away the two's position,...