S TIER
- Scar
- Bionic
- Amazon
- Celtic
- Cleopatra
- Pirate
A+ TIER
- Wolf
- Mr Black
- Elder
A TIER
- Hunter
- Jungle Hunter '87
- Captured
- City Hunter '97
B TIER
- Falconer
- Exiled
- Scout
- Feral
- Alpha
- Valkyrie
C TIER
- Gladiator
- Chopper
- Emissary
- Samurai
- Viking
D TIER
- Berserker
Based on in-game stats & legitimate personal experience against High Level Fireteams in Private Matches
Thanks to @Samhain13 for providing in-game stats & additional insight/evaluation on certain class placements.