FreeGameDev

I found a flaw in the map 'Keystone' by blarg, on Bomberball-hold mode with the Resize mutation.
On this map there is one corner room on the upper-floor with a grated floor. Grab the ball and a weapon with ricochet damage. Go to the room with the grated floor and fire downwards to ricochet back at you, damaging you and resizing you small enough to fit through the grate. (You can switch to 3rd-person view by pressing F9, which helps to judge your size relative to the grate holes.)
Below this grate is a pool of water surrounded by solid walls/floor. Other players need accurate shots in order to hit you under the grate, so they would probably also make themselves smaller to get to you. This gives you an advantage, because they wouldn't have recovered by the time they pass through the grate. Bots aren't smart enough or accurate enough to hit you underneath the grate. In most cases, you can just juggle the ball whilst under the grate until you reach the score limit.

If anyone else finds flaws in the official levels released for Red Eclipse, please post them here.

Ah, I will check that out.

Edit: The floor grate is now clipped. The update is available in the SVN.

Not sure if this was intended or not, but on Linear, on the upper spawn level, if you jump up onto the little barrier and do some very well timed wall jumps, you can reach the tall pillar and stand up there without a jetpack. Like I said, I'm not sure if that was supposed to be there, but regardless, figured I'd post it here to be safe.

That's what I thought. It took me a while to get the timing down, but I got up there ;P