Well with the spitter it will be harder as one bit of spit and you cant stand there, hopefully

Hopefully the smokers cloud will be poisions, been modded in L4D to do this and works better.

Should make all crescendo events have an on, off switch like shown in the demo, if ppl decide to camp it just turns into a survival type of scenario getting harder and harder until they move, should stop them from camping and keep the game flowing better.

Perhaps something else they should consider is gving the boomer a cumulative effect, rather than puking and having to wait for it to wear off. The suicidal nature of the boomer could then be better used; i.e. puke + explode on survivors means even more zombies.