1 man checklist:

(* = no refunds, NF = no fails)

Doe's Drill ✔*, NF (Pyro/Sniper/Demoknight)
Crash Course ✔*, NF (Pyro)
Village Vanguard ✔*, NF (Pyro)
Mann-Euvers ✔* (Pyro)
Benign Infiltration ✔* (Soldier/Pyro)
Big Apple Barricade ✔* (Soldier)
Doe's Doom ✔* (Pyro)
Day of Wreckening ✔* (Pyro/Heavy W4 only)
Mean Machines ✔* (Pyro)
Mann-Hunt ✔* (Pyro)
Quarry ✔* (Pyro)
Cave-In ✔* (Pyro)
DISINTEGRATION ✔✔✔
BONE SHAKER ✔✔✔
MACHINE MASSACRE ✔✔✔* (Pyro/Sniper W2 only)
CPU-SLAUGHTER ✔✔✔
DISK DELETION ✔✔✔✔✔
Ctrl-Alt-Destruction ✔✔✔
DATA DEMOLITION ✔✔✔✔✔

19/19 done of doable
12/12 done of doable no refunds


2 man checklist:

Bone Shaker ✔* (Scout/Soldier, Soldier/Medic, Scout/Pyro, Scout/Demo, Engi/Sniper)
Broken Parts ✔* (Scout/Soldier, Soldier/Spy)
Disintegration ✔* (Pyro/Sniper, Scout/Soldier)
Bavarian Botbash ✔NF* (Pyro/Spy, Soldier/Scout, Scout/Sniper, Scout/Scout)
Hamlet Hostility ✔NF* (Scout/Sniper, Scout/Soldier, Scout/Pyro)
Metro Malice ✔* (Sniper/Spy, Soldier/Spy, Scout/Soldier, Scout/Sniper, Sniper/Soldier, Heavy/Medic)
Empire Escalation ✔NF* (Sniper/Soldier, Scout/Sniper, Spy/Sniper, Sniper/Sniper, Spy/Sniper, Heavy/Medic)
Cataclysm ✔* (Sniper/Soldier, Pyro/Sniper, Spy/Pyro, Scout/Sniper, Scout/Soldier, Scout/Pyro, Sniper/Engi)
Desperation ✔* (Sniper/Soldier, Scout/Soldier, Medic/Pyro, Pyro/Sniper, Spy/Soldier, Scout/Sniper, Sniper/Engi)
Mannslaughter ✔* (Sniper/Soldier, Medic/Pyro, Pyro/Sniper)

10/10 done of doable no refunds

Ctrl-Alt-Destruction ✔* (Pyro/Scout, Pyro/Sniper, Soldier/Scout)
CPU-Slaughter ✔* (Scout/Pyro, Pyro/Sniper)
Disk Deletion ✔* (Scout/Pyro, Soldier/Scout)
Data Demolition ✔* (Soldier/Sniper, Pyro/Spy)
Machine Massacre ✔* (Scout/Sniper)
Mech Mutilation ✔* (Spy/Pyro, Scout/Sniper)

Calignious Caper ✔* (Scout/Soldier, Soldier/Scout, Soldier/SKnight, Soldier/Pyro, Pyro/Scout)