Without revealing any spoilers, my companion uses a generic laser rifle (I'm sure those in the know can figure out who it is). Since we have the perk that boosts companion damage, is that good enough? Or do you find it significantly more effective to give them a powerful weapon and keep them supplied with ammo?
This is non-stealth playthrough and I plan on doing more reckless running and gunning. I'll be depending on my companion to actually help me in combat rather than just be fodder whenever they happen to run in between me and the enemy.