PBEM QB question

[ATCS]

Since I'm still quite new at this, I was wondering: when you are sent a setup for a PBEM QB, can you tell what the weather/time of day/terrain is like prior to selecting forces? Reason for asking is that if you are playing a ME, your force selection would probably differ if you are playing in wet and muddy conditions compared to hot and dry, right? I mean, who wants heavy tanks that may bog?

So, do you just roll the dice on your force selection, or is this negotiated prior to setup? A little clarification would be greatly appreciated.

Mike