Oh yeah... backblast script.
It's just a modified version of the BIS smoke script... here's the code here:
_call = _this select 0
goto _call
hint "Error in Scene.sqs"
exit
...
#OLBackblast
_atguy = _this select 2
? not ((_this select 1) in ["AT4Launcher","CarlGustavLauncher","LAWLauncher","RPGLauncher"]): exit
? not ((secondaryweapon _atguy) in ["AT4Launcher","CarlGustavLauncher","LAWLauncher","RPGLauncher"]): exit
? _atguy ammo (secondaryweapon _atguy) > 0: exit
_velocity = [sin (getdir _atguy + 180) * 10, cos (getdir _atguy + 180) * 10, -0.5]
_lifeTime = 0.5
_intensity = 10
_object = ""
_delay = 0.05
_lifeTicks = _lifeTime / _delay
_lifeTick = _lifeTicks
#loopBB
drop ["cl_basic", "", "Billboard", 1, 1.5, [(getpos _atguy select 0) + sin (getdir _atguy + 180) * 0.5, (getpos _atguy select 1) + cos (getdir _atguy + 180) * 0.5, (getpos _atguy select 2) + 1], _velocity, 1, 0.005, 0.0042, 0.05, [0.5,35], [[0.8,0.8,0.6,0.75], [0.6,0.6,0.4,1 * _lifeTick/_lifeTicks], [0.3,0.3,0.2,0.1 * _lifeTick/_lifeTicks], [0.1,0.1,0.01,0]], [0,1,0,1,0,1], 0.2, 0.2, "", "", _object]
~_delay
_lifeTick = _lifeTick - 1
?_lifeTick > 0 : goto "loopBB"
exit
It's fired using the eventhandler:
this addEventHandler ["Fired",{["OLBackblast",_this select 1,_this select 0] exec "Scene.sqs"}]
Just note I'm using it embedding in my "Scene.sqs", which is my cutscene script. Feel free to use it yourself, but you may need to make some changes to get it to run.
I also had some issues with it activating when a unit jumps out of a vehicle (don't ask me why, but the eventhandler activates then for some reason). To counter act this I added the lines:
? not ((secondaryweapon _atguy) in ["AT4Launcher","CarlGustavLauncher","LAWLauncher","RPGLauncher"]): exit
? _atguy ammo (secondaryweapon _atguy) > 0: exit
Which exit the script unless the _atguy has an empty AT weapon.... however there are still circumstances when it will activate getting out of a vehicle (eg. an guys with an empty AT weapon gets out of a vehicle).
Anyway, there it is, go nuts

I'm happy to answer questions about it... if there's enough interest I may make a generic version and release it to the Ed Depot... though I'd be surprised if no one has made one of these before
