*Proximity The first time an enemy operative moves within ⬤ of this operative's Melta Mine token, make a shooting attack against each operative within ⬤ of that token with this weapon (even if this operative is not in the killzone, and ignore all Ballistic Skill modifiers). When making those attacks, those operatives are always valid targets and cannot be in Cover. At the end of those shooting attacks, remove that token. An operative cannot make a shooting attack with this weapon by any other means, or if its Melta Mine token is not in the killzone.
APx Each time a friendly operative makes a shooting attack with this weapon, subtract x from the Defence of the target for that shooting attack. x is the number after the weapon's AP, e.g. AP1. If two different APx special rules would be in effect for a shooting attack, they are not cumulative - the attacker selects which one to use.
MWx Each time a friendly operative makes a shooting attack with this weapon, in the Roll Attack Dice step of that shooting attack, for each critical hit retained, inflict x mortal wounds on the target. x is the number after the weapon's MW, e.g. MW3.