Osiris A, the sniper. Stay 400-600 m away from the brawl and keep firing those LBLs. You'll have a kill on two in a couple of minutes. But remember, Osiris' has tinfoil armor, so it your CT or RT turns yellow, run like hell.
Kit Fox A, half a Mad dog.

Same general strategy, but the lack of JJs would make you seek a more open terrain. You can even try to go one on one brawling, as Kit's armor is a little tougher, that of an Osiris, but brawling in a Kit Fox is a tricky thing to do, as it's too fragile.
Owens B, SRM speedboat. An excellent light brawler. SRMs are powerful and quite easy to use, even at high speed. BHP, C3 and MASC are gave Owens even more chances of success and a scouting ability. Run deep beyond the front line, scare the shit out of LRM boaters, spray SRMs all over the place and quickly retreat with a bunch of credits for discovered enemy mechs. BTW, this guy is an excellent giant slayer as, with some piloting skills, it could circle around slow assaults, like Atlas or Awesome, staying out of their firing arc and ruining their aim with SRM volleys. Similar strategies(except for scouting) could be used with Harasser Prime.
Hollander B, the chaingunner. A good alternative to the conventional AA platforms, like Partisan prime. Has jump jets to get to the high places and ruin the day of any flyboy around. And it's good to kill BA too.

Moreover, it's not helpless if an enemy mech shows around. It's RAC5 could be nasty at close range. I cored a lots of Kit Foxes and Osirises that way.
Raven Prime, the scout. It's fast, it's hard hitting and it has NARC. What more should I say? Keep close to the friendly brawlers and pick at the enemy, engaged with one of them. NARC juicy targets for your second line support, annoy slow targets into chasing you so that it would be an easy pray for advancing friendly forces. Same goes for Raven C, except for NARC part. You can even snipe enemies from afar and ruin their aim.
