Not asking for 6.7 fixes everything without making it OP.
Why 7.7 is dead:
At 7.7 the Maus sees 8.7 in 90% of its games.
Stabilized APFSDS (T-55AM-1, M60A1 AOS, Chieftain)
2nd gen ATGMs (IT-1, RakJPz 2 HOT, Swingfire)
HEAT-FS that pens 400mm from every angle
Its armor goes from “strong but has weakspots” to “doesn’t exist.” You are a 188-ton heavy with no armor and 20 km/h top speed.
Why 7.0 works:
At 7.0, max uptier is 8.0. That is HUGE:
You mostly avoid APFSDS and ATGMs
You still face HEAT-FS (Leopard 1, M60, Ikv 91, RU 251) so you are NOT invincible
In a 6.0-7.0 downtier you actually get to be a heavy tank for once
Your weakspots - turret face 240mm, lower front 200mm, side 185mm - are still easy pens for 6.0-7.0 tanks like T-34-100, M-51, British APDS, etc.
It stays balanced because:
Size: Still the biggest target in game, free kill for CAS
Mobility: Still 20 km/h, can’t cap, can’t flank, can’t retreat
Reload: 19.2s ace - a T-32 at 7.0 reloads twice as fast
No stab, no LRF - everyone at 7.0-8.0 has better gun handling
Compare to other 7.0 heavies:
T-32: smaller, faster, better reload, harder turret
IS-3: faster, better armor profile
Conqueror at 7.3: better gun, better armor
Maus at 7.0 would be slower than all of them but have more raw armor sometimes. That’s a fair trade.
7.0 makes it playable, not broken. 6.7 might be too much, 7.7 is unplayable, 7.0 is right in the middle.
It would finally be a fun event vehicle again instead of a hangar decoration.