Females in this game should have big boobs and skimpy armor, so I can distract people

[Marth Koopa]

When they zoom in with their iron sights, they'll get a nice view of my female character's cleavage and hesitate for a moment before they start shooting when they finally realize I'm on the opposing team, giving me a large advantage in shootouts

Also, jiggle physics. Every game must have some good jiggle physics these days.