Only if you are extermely lucky. Most scenarios want 18" to seperate you from your opponent when you infiltrate, and you do not get a free move if you get to Infiltrate. This means you have to move 6", roll a 6 on your FoF and then stretch your 6" assaultmove very well if you are to get into combat in turn one. If you go first, that is. If the opponent obliges you and moves your way, prepare to be counterassaulted in turn 2.