[quote=@Doc Doctor]
[@MelonHead]

Throughout the match I've been trying to avoid starting up OOC business. I always try to. But now, I have a piece to say. I highly doubt that the occular thing is tough enough to not be hindered by the blow. Even if the metal is too hard to dent, the shock would obliterate the lens, bulletproof or not. 
[/quote]

Actually it literally is, I pretty clearly stated in the sheet it has a shock resistance of 100mm RHAe value, in layman terms it has the same resistance as the front armour of a tiger tank. If you look at the reference picture your creature chose a poor method for striking at it, as its protected from above. Unless you're now stating it swung wide to hit it from the front, in which case we're back to the grab situation and how it somehow failed. 

Taking any damage at all from a rock was really my decision, as the rock would have no chance of being as hard as the armour your character smashed directly at, nor would it be an effective way of by-passing the armour to hit the bullet-proof lenses, as it would be too fat to impact the lens directly. 

Despite the fact that it would literally do nothing however, it is still going to impact the Optics, and has already.