as for my ideas
1. A limb disabling script (if the right side is hit disable the right arm etc.)
2. More unique weapons (e.g. Blaster launcher, Laser weapons in general, HC/AC, and the F.M.P Multi launcher)
3. Better sound design (e.g. TFTD's entire set of sounds)
4. Multiple research paths that are mutually exclusive
if anyone has any ideas leave them here