A small suggestion for public arenas.

[Rudy]

Since I don't play in arenas without guanobot anymore I don't have to resort to it, but I used to BT and invite cloakers into the flag room to kill any levis that attached for base. I'd just sit at the other end of flag and watch the little x creep up on him and blow him away. The funniest part is when, after this happens a few times, the levi starts abusing you for not watching x. Good times.

[Bioture]

Good thing the levis doesn't have reps anymore, then the terr-a-pult sometimes fails - as the levi reps itself to freedom.

Another good way to kill levs (teamkill, kill, whatever) is to have a friendly shark place mines near the roof (inside the base) and then having another shark going to the roof and repping the mines into the base, hopefully killing everything.