Solo rebelling? Scout or Sniper. Scout is really good because of speed, obviously, but falls off not only in health, but in my opinion the biggest factor is the less damage from melees. Ends up taking longer to break into armory, which is really bad (I see true rebelling as getting ammo, not just fighting back, demoknight for that). Sniper is really good if you're good at him but only once you get ammo, which can be really tricky, and usually requires luck. Now, my favorite way to rebel is sandman scout with kritz medic. Sandman is awesome for rebelling because the chip damage you get while running is amazing, and the slow, though not as good as the pre-nerf sandman, is still really useful. then, once med gets kritz, which charges faster than stock, you run in and beat anyone chasing you to death. Boston basher is a really good alternative because building uber becomes almost trivial, but I like the utility of sandman a lot.