Trophy Description: In PANIC ROOM, kill all armed thugs in and around the apartment building within 60 seconds of you and your crew drawing your weapons. To complete this challenge, you will have to have played the heist from the start.

I was on panic room and after killing about 6-7 thugs I missed the next one so I restarted the mission and this trophy popped!!! I did it on single player with NO AI and went on restart heist not end game, maybe something to try if your struggling to find people to help with this trophy, I did restart a few times before the trophy popped though after missing a shot so try killing a few thugs and restarting about 4 or 5 times if it doesnt work first time... post back here if it works for you

Also if you try the 30 bullets 30 kills with the rifle, you can also do that trophy by restarting on panic room. Just dont miss

BTW for the But How? trophy you don't wait for the armored truck to fall you need to shoot it in the beginning section of the mission so it falls front first.

The truck will then fall after a couple of assulat phases the other way around it will never drop.

You mean before you go down the second set of stairs?

That sounds like a better way. Someone told me that after breaking through the convoy and entering the slaughterhouse, you will see the truck hanging by a few wires. As the description states, DO NOT shoot at them. what you're actually going to do is absolutely nothing. The truck will eventually fall on its own. The few times I helped people with the trophy, it took roughly 10-15 minutes and we had to sit through 2 assault waves. So bring some ammo and doctor bags for this one.

If shooting the window works, than i rather do that.

it's not the better way to do it, it's the only way to do it.