Spawn 40mm explosion where player is aiming.

[D. Patterson 14]

Sounds simple but I'm having two issues:  

1) I can't get where the player is aiming if they are aiming at anything besides terrain (ScreenToWorld only seems to work with terrain.)

2) I can't get G_40mm_HE to explode without spawning it above ground and giving it velocity. Which won't work if you are shooting into a building (Would just hit the roof)