I actually had a very nice go of using Brawler-trait melee colonists in my last playthrough.
At the point I'm in, thanks to some lucky purchases, I've had one which, toting a spear and wearing power armor and power helmet, is an utter beast that I now always keep around during large scale tribal raids when numbers manage to break through my lines of ranged attacker(sadly I don't have a power setup that easily handles multiple layers of turrets).
She's even took on a Scyther bot one-on-one and came up on top.
At the point I'm in, thanks to some lucky purchases, I've had one which, toting a spear and wearing power armor and power helmet, is an utter beast that I now always keep around during large scale tribal raids when numbers manage to break through my lines of ranged attacker(sadly I don't have a power setup that easily handles multiple layers of turrets).
She's even took on a Scyther bot one-on-one and came up on top.