...and that was it. Didn't move to spectate in another's cockit, no crash out or anything either. And my mech's twitching got a bit worse as I watched.
Eventually I tried some controls. Nothing responded, except my throttle up/down keys... the throttle indicator moved to match, though my mech didn't accelerate.
So I took a screenshot to demonstrate this:

Then I tried firing. To my shock, this worked:

Also note changed throttle position. Tried again, alpha strike this time:

Unfortunately, no-one wandered in front of me, so I couldn't find out if I could actually hit anything, but my ammo count had gone down when I got back to mechlab. On the other hand, I was definitely dead; my K/D ratio dropped.