(adsbygoogle = window.adsbygoogle || []).push({}); As some of you may or may not know, if you put FMJ (300 kills to unlock) on the MG4 (Light machine gun) then the name reads "MG4 Explosive Rounds", same for the pickup icon.

Anyway, I know that's already posted, I was just explaining what it is.
The point in this thread is why it says that? Does anyone know the actual reason?

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I love using this as you get n00bs saying "z0mg th!5 guy h45 h4ck3d t0 get CH0PP3R BULL3T5 0N H!5 MG4!!!!!!!!!!!!!!!!!11!!!!!1!!!!111111!!!"

This isn't true...

Maybe just to add something unique. Just like how the L86 LSW has a different ACOG sight than other guns. It makes no difference, they still carry out the exact same function as FMJ rounds in the game.

That explains it, thanks!