Comment by fapjacks

Nope. You want them IN the room, not in front of your point man. It's called a "fatal funnel" also. All this shit goes out the window anyway (sideways pun intended) in combat. My preference is hand grenades, but you don't get many of those (or flashbangs, for that matter), so it really depends on the circumstance. Either way, you'll get kicked in the head if you toss a flashbang right inside the door.