Hi i just wont to say the M2K models are the BEST, but i noticed that there were some animation problems with a few of them.
to fix the rocket launchers speed go into md3.cfg and replace the md3anim "gun_shoot" with: md3anim "gun shoot" 2 18 70
to fix the grenade launchers speed go into md3.cfg and replace the md3anim "gun_shoot" with: md3anim "gun shoot" 2 19 60
to fix the pistols speed and timing issues go into md3.cfg and replace the md3anim "gun_shoot" with: md3anim "gun shoot" 8 20 40
to fix the rifles speed go into md3.cfg and replace the md3anim "gun_shoot" with: md3anim "gun shoot" 2 29 20
to fix the shotguns speed go into md3.cfg and replace the md3anim "gun_shoot" with: md3anim "gun shoot" 4 26 22
thes work for me but if the speed is still pff edit the last number, that is the frames per second.