Your primary armored DPS that isn't a Manticore. In most cases, a Manticore is scarier, but these guys have consistent output and are also armored. And unlike Manticores, you get all 5. You can think of them as armored Jaegers that do better vs high HP enemies and same-ish or worse vs. lower HP enemies.

The big thing about them is their skills. They get bonus damage based on how much max HP a target has, and they can drive their own crit rate up as they keep firing.

They do however, apparently have defective targeting systems, so you NEED something else like a Jaeger to provide range, because otherwise they're kind of not going to spot anything to shoot.