Bossk
Bossk is one of the most unique heroes as his gun acts as a shotgun and a sniper allowing him to work well at all ranges. When firing from the hip, his gun acts as a shotgun which does a lot of damage up close and some damage at medium range and when zoomed in, it acts as a sniper. But his sniper is hard to control and doesn't act like other snipers as it needs to charge up for good damage and can be hard to aim but the damage pay of is worth it. This can one shot regular soldiers if you are accurate enough. His proximity mines are pretty straight forward but do lots of damage. You can either put them all in one spot for maximum damage, like in a doorway where enemies are going to run through or you can spread them out to cover distance by throwing them directly above you and letting them land. if you have high ground then just throw them down normally. His dioxies gas grenade is also useful because when in galactic assault just throw it at a choke point or at a group of enemies to get some easy damage or you can throw it on yourself if there is a lightsaber hero near you, allowing you to fight them in the gas, which should let you kill them or they retreat. His predator instinct ability is very useful as he the grenade launcher can bounce of surfaces and detonate when they impact a target. So you can bounce them around walls for some easy kills, wipe out a group of enemies or kill a saber wielder because they can't block it. This ability also gives him a speed boost so its great for getting away to regen some health. You can also play more aggressively with Bossk as his health will always regen to full no matter how much you get damage, so you only have to worry about getting killed in an encounter.