[MISSION] Powerplant - Depredation

[eyes6526]

Overall:
- Giant Demomen now have 3300 HP instead of 3200

Wave 3:
- Turned 24 Bison Soldiers and 24 Airblast Pyros into 48 Bowmen

Wave 4:
- Turned 6 Giant Scatter Burst Demomen into 6 Giant Demomen

Wave 5:
- Removed Engineers + Uber Medics
- Made Hybrid Knights limited support that spawns from the beginning of the wave
- Lowered general firepower of the bison boss and Giant Bison Soldiers
- Made Giant Scouts and Giant Bison Soldiers simply wait a long time to spawn instead of waiting for the boss to die
- Crit Concheror Support now waits for the Hybrid Knights to finish spawning instead of the entire last subwave
- Turned Long-Uber Medics into normal uber duration Medics