lol i got a bunch of ideas...
Overkill. Carry 2 primary weapons
Small Overkill. Carry two secondary weapons
Demoman. Carry twice the amount of explosives
Juggernaught. Health is increased but cant use a primary weapon, only secondary
Recon. pressing select over enemies will show a red dot on radar till the enemy is dead
Counter Recon. Enemies cant point you out. (Similar to ninja)
Second Chance. Can revive fallen teammates
Spy. Hear enemy radio chatter.
Support. Similar to Scavenger, but teammates around you also gets some ammo too.
Decoy. Similar to a tactical insertion, except comes up on enemy radar and tricks them.
Riot Pro. Adds spikes to riot shield resulting to One hit-One kill
Midget. (Death Streak) You get short to have the size you normally are.
Kill streaker (Death Streak) You dont lose you killstreak after dying
Robber (Death Streak) Get weapon loadout and killstreak your killer didnt use yet.
I know a bunch of these are nooby, just a bunch of ideas
Thank if you like!