Similar to CPA_CustomMissile but for weapons; it uses the
same parameters for Args1..Args6. Args7 is still a flags
parameter but it accepts different options (bits): CMF_USEAMMO (256): check and deplete the player's ammo. Args8 specifies the ammo to be checked/used according
to the following convention:
1: Bullets
2: Shotgun Shells
3: Energy Cells
4: Rockets
5: Wand Crystals
6: Ethereal Arrows
7: Dragon Claw/Blaster orbs
8: Hellstaff/Skullrod runes
9: Phoenix Rod orbs
10: Mace Spheres
11: Blue Mana
12: Green Mana Args9 specifies the ammount of ammo used per shot. CMF_AIMATANGLE (512): add the specified angle to the
player's angle when shooting the missile.