I figured out how to make the rest of the missing rockets!

Added:
- SMOKE 469 (spawns 3 smoke grenades at impact)
- ILLUM 545 (spawns bright yellow flare in sky or on impact)
- ADM 401 (fires 1100 high-damage flechettes, causes a bit of lag)
- HE 44 Airburst (detonates in air, available in 100 m, 250 m or 500 m detonation point)

Have fun and report any errors in the comments/discussions!