Inertial Compensators/Dampers as Core System

Assumption: Such technology is rampant in the ships of 2185. It is
reliable, or at least has a reasonable failure fall-back so crews don't
go "splut". It is necessary to sustain up to Thrust 6 or 8 accel, and is
part of the drive mass for those ships.

But here's an interesting (I think) variant:

Intertial Compensators Core System:
SSD Icon: Make up what you like. I think an apple in a box would make
Mr. Newton happy.
Effect:
When Inertial Compensators are hit, that's bad news. The part of the
ship that limits the effects of gravity on the crew is damaged. That's
not a good thing. Immediately roll a further D6. On a roll of 1-5, the
"Inertial Flywheels" wind down slowly, thus having no immediate effect.
On a six, they give out catastrophically. In this instance, if the ship
applied more than 4 points of combined thrust in the last turn (count
pushes and thrusts and rotations), this loss may cause crew losses and
ship damage. If the combined thrust total exceeded 6, make an extra
threshold check for all systems (including another core systems check!)
needing a 6 to have an effect. In any event, if it exceeded 4, check for
each crew unit by rolling a d6 and adding 1 for every point over 4. If
the total is 6+, that crew unit is dead. Assuming this doesn't kill off
the crew completely or wreck the ship, the ship has future problems.
Henceforth, it can only apply 2 or 3 units of combined thrust in a turn
safely. It may apply 3 units of thrust, but only for 1 turn periods.
Then it must drop to 1 or 2 combined thrust points for a turn. Any time
these thrust limits are violated, a roll must be made for each crew
unit, and a +1 added for each "above-the-limit" thrust point used (ex -
if in a limit 2 turn, and 4 thrust are applied, the roll is at +2). For
each 6+ generated, the crew unit dies. If the ship exceeds its speed
limit by more than two, a threshold check must be applied (can be
resolved together with other thresholds at the end of the turn).

It is rumored the KV have better dampers and better back up systems and
so they may be immune to this core system hit. UNSC ships may also have
this more advanced variety of damper system, and so also be immune.

This type of system would be especially prevalent on older warship
designs.