((Okay, but here me out. Imagine Exos augmenting themselves with built in weapon mechanisms in case their guns fail, but they still need that bonus bit of umph for taking down an enemy.
Exo Hunters with various dart based weapons or hidden projectiles á la Assassin’s Creed.
Exo Warlocks with lasers in their hands to generate blasts of void, arc, or solar energy.
Exo Titans with fucking PILE BUNKERS IN THEIR ARMS))