MegaMek is a networked Java clone of BattleTech, a turn-based sci-fi boardgame for 2+ players. Fight using giant robots, tanks, and/or infantry on a hex-based map.
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When a location is destroyed, rather than just damaged, no check for critical hits in that location is made unless it contains one or more explosive slots. In that case, any resulting critical hits that strike explosive slots in that location are resolved as normal; hits that do not are always discarded without transferring.
In other words, you check for crits if you damage a location, but not if you destroy it, unless when it is destroyed it has ammo in it. Even then, any crits that result never transfer.
Their is a rule change regarding Critical Rolls/Hits transfer, we should check to see how MM is handling them.
See here http://bg.battletech.com/forums/index.php?topic=7937.0 -and- http://bg.battletech.com/forums/index.php?topic=23302.0
Relevant Text When a location is destroyed, rather than just damaged, no check for critical hits in that location is made unless it contains one or more explosive slots. In that case, any resulting critical hits that strike explosive slots in that location are resolved as normal; hits that do not are always discarded without transferring.
In other words, you check for crits if you damage a location, but not if you destroy it, unless when it is destroyed it has ammo in it. Even then, any crits that result never transfer.