[quote=@IceSolstice]
@Everyone

Air freshener to cover our scent? 
There is no information on the infested's intelligence so... [i]would[/i] they be smart enough to stick around? They retain memories, barely, in stage 1... so.. implies that brain deteriorates? Humans and chimpanzees are the only animals that exhibit conscientiousness (basically discipline, regulating impulses, etc.). So if the zombies (human based ones) are any lesser, they'd probably just leave our characters alone since they don't have the self-control to wait.
Theoretically, stage ones wouldn't be able to detect us if all of our characters hid quietly and out of sight, stage twos and higher wouldn't have the patience to stick around. But nothing is really going to stop that stage four from ripping down your door if it knows you're there. >.>  
Of course, this is all up to our dear GM. 

[@Dungeon Blaster]

Minor suggestion, but could you compile all the additional information you've given out in the OOC thread into the main post? Would help facilitate information better to the newer people that join. 
[/quote]

They're primitive-thinkers, like most zombies you'd encounter in any medium. There is no hive mind, no advanced strategies... just simply, "hey look, there's someone! let's a get'um!" 

However, as the virus evolves, they do gain better control of their bodies, and their bodies become better suited to the pursuit. So stage twos, aka sprinters, have enough coordination and control to start running, but they're still clumsy. Stage Threes have fall control, and their bodies are starting to mutate, so they can do stuff like climb walls - if they can get adequate purchase. Things like doors though, will forever remain an obstacle to Stage Three and Fours, because they will be unable to remember how to use them. 

Having a Stage Four that could open a door, walk in, pour itself a cup of coffee and say "boo" to you all was a bit OP, so I took away their memory.

As for all of this additional information - yes, you're right. I need to return to the first post and beef it up some... which is something I should have done from the start. The playerbase growing beyond expectations, I think is what has caught me off guard.