I know what you mean about the Brute Shot. Sometimes Stylesjl uses it. I can't see what the heck is going on and then I'm dead.
I like playing on Narrows, it's a very good map for this sort of thing. I made my own modified version that I find really awesome. It's got fusion coils at each mancannon and there's a stack of immobile crates guarding the blue base, so that I can't stand in yellow and snipe Stylesjl at the blue mancannon lower level where he mostly spawns at.
I also added a Gravity Hammer, Swords, a Beam Rifle, Firebomb Grenades, Spike Grenades, a Fuel Rod Gun and a Flamethrower. These weapons are on floating platforms above the Rocket Launcher and can only be reached by grav lifts placed nearby.
There's even a Trip Mine and Custom Powerup up high.
Too bad I can't share the awesome with you guys, as I don't have Live