My idea is to have the splash damage of explodey things stopped by polygons
for those who don't know, splash damage is the damage that happens around an explosion.
polygons stop bullets, and the explosive itself, but not the splash damage of an explosion.
get a friend, and have them stand at the high route at bravo's side where there is a little zig zag, shoot an m79 shell directly at them, they will take damage because the splash damage goes right through the polygon.
it can be very annoying to be pinned/killed by some people with grinades or m79 or law, and be totally helpless