What if two molotovs collide mid-flight
Ideally: They'd explode in mid-air, and you'd catch on fire if you were involved in the blast.
Really: I think the idTech 4 engine should be able to handle doing that; if not then both parties are set on fire and those are quite good odds.
what if an operative's sticky collides with a Grenade launcher shot
Ideally: The sticky will latch on to the GL shot. Even more ideally, the launched grenade may be knocked off balance/slowed down/detonated in mid-air? If not, the Operative will find themselves knocked down with their own sticky latched to their leg, and if not defused will lead to a suicide.
Really: If projectile collisions do not occur, someone gets knocked down, someone has a death timer on their self. The latter will lose.
We should test GL versus GL.
Ideally: Double the size of a normal GL explosion.
Really: If projectile collisions don't happen, then both guys are knocked down with considerable damage.
More importantly, though, can Heavies surf on a sliding light for a speed boost?
Ideally: The Light is ground to a halt and the Heavy gets launched off. For more insult to injury (although this wouldn't be a good idea), the Light may take damage.
Really: Not sure how interactions between characters are handled. Hopefully it doesn't work.