i've been using an assault 2 since the beginning of summer and have slept in conditions ranging from hot and dry to super saturated cold air and strong winds. in the past i've always used a bd firstlight but decided to try something different this time.
condensation does its thing just like any other single wall tent. i find the condensation to be equivalent to a bd firstlight (as in if the air is saturated, you're going to get condensation on the inside of the tent). one thing that i have appreciated about the assault is having guyout points on the sides of the tent. when used on a small ledge these don't help much, but when pitched on a bigger platform, the guyout points adds substantial room inside the tent and much stability in the wind. the price of the assault surprised me, so when i bought it i expected to open the package to unveil a piece of junk. not true. the fact that it includes a vestibule is a sweet deal.
in the end however, i feel like i could make argument for the firstlight as well. i have been extremely happy with both tents (assault and new and old firstlight) knowing full well that i was going to have to deal with condensation at some point.