Light Mechs:

Locust 0P: overtonned by 1
Raven 2X: 2 tons under tonnage
Raven 3L: 2 tons under tonnage
Raven 3M: missed the LRM weapon for the FTL lrm ammo
Commando 2DS: needs 3 more free slot
Spector 4F: 1.5 tons under tonnage
Erinya needs: 2 more free slot.
Wolfhound: 4WB needs 1 more free slot
Arctic Cheetah B: 0.5 undertonnage
Little Friend clan urbie: has 1 extra tsm system and needs 3 more free slot for one tsm.


Medium Mechs:

Butcher Vindicator: rightarm invalid hand actuator and 1 ton undertonnage.
Stingray 1X: needs 4 more free slot and invalid hand and lowerarm actuators.
Gemji Crab: 1 ton undertonnage
Akuma: 1 ton undertonnage
Gauntlet 1B: needs 1 more free slot.
Anansi Spider: 4 tons undertonnage
ArcticWolf ACW-1: 1 ton undertonnage and missing ammo for narc launcher
Centurion CN10-7S: too much stuff in left arm, extra lower and hand actuator in leftarm aswell. needs 4 more free slot and void can't be used with FCS adv TC
ArcticWolf BK: has wrong ammo for HGM (C) and SRM6 streak (C).
Phoenix PXH-HK5: 3 tons undertonnage  (missing HK5 ui name when you load the mech in mechbay)


Heavy Mechs:

Charger PB: 2 tons undertonnage
Axman LAC5/6X: (has different ui name if you click on it and load the mech actually in the mechbay. 6X outside, LAC5 inside mechbay) 5 tons undertonnage and possibly not matching ui names.
Crusader 5K: needs 1 more free slot.
Crusader 3RP: 2 tons undertonnage
Crusader 6M: 0.5 ton overtonnage and needs 4 more free slot.
Marauder 5L: 0.5 tons undertonnage.
Archer 4MI: needs 2 more free slot.
Athena ARC-XR: 4 tons undertonnage
Eris TDR: needs 2 more free slot.
Night Gyr B: 2 tons undertonnage.
Night Gyr Prime:  needs 1 more free slot
LineBacker Prime: 0.75 tons undertonnage
Jade Hawk: 04 2 tons undertonnage
Jade Hawk: Hazen 5 extra tsm and 2 tons undertonnage
Gladiator S7: has 5 extra tsm and 2 tons undertonnage
NovaCat A: 2 tons undertonnage
Griffin S: needs 2 more free slot, has extra invalid foot actuators in both leg and 2 tons undertonnage


Assault Mechs:

Victor 9B Li: too much stuff in right arm (9B missing from ui name, when you load the mech in mechbay)
Victor DK: 0.5 ton undertonnage
Annihilator 1E: too much stuff in both arms and needs 2 more free slot
Hatamoto-Chi HTM-SAM: Both arms have extra invalid hand actuator
Longbow 7V: too much stuff in head
Care Bear: has 5 extra tsm 
Battlemaster 1CX: needs 1 more free slot
Banshee HK: needs 4 more free slot
Marauder IIC-A: 1 ton undertonnage
Mackie MSK-P/Mackie-P: (has different ui name if you click on it and load the mech actually in the mechbay. MSK-P outside, Mackie-P inside mechbay) 8 tons undertonnage and possibly not matching ui names.
Argent Leviathan: needs 4 more free slot, Both arms have extra invalid, shoulder, upper and lower actuators
Joermungandr: needs 1 more free slot and Artemis V FCS can't be used with Void system
Behemoth KGC-B:  needs 4 more free slot and too much stuff in both arms
Vollstrecker: needs 3 more free slot
Warhammer IIC-7: 13.5 tons undertonnage    (Mine!!!)     Engine fuel cell doesn't apply extra engine weight!!!
O-Bakemono M10: too much stuff in both arms
Shrike 2: too much stuff in right arm
Direwolf C: needs 2 more free slot, too much stuff in both arms.
Direwolf Lone Wolf: needs 2 more free slot, too much stuff in right arm
Zeus C: too much stuff in both arms
Rifleman III-C 1S: needs 1 more free slot
Naga C: too much stuff in both arms
Naga D: too much stuff in both arms
Naga Z: needs 2 more free slot