Ah! But there's a loophole to that in theory!
If the explosion were to create a locally distorted space that was in itself traveling against another space the object inside said space could exceed the speed of light relative to the external space but not so relative to the INternal space.

Adapted from Deep Core Mining Inc.'s proprietary technology, the DCMA S-1 subverts conventional expectations of what a man-portable anti-material weapons platform is capable of. Despite its excessive weight and extended recharge time, the GÇ£Forge GunGÇ¥ as it has become known, is regarded as the most devastating infantry weapon on the battlefield, and an invaluable tool for those capable of wielding it.
Powered by a Gemini microcapacitor, the forge gun utilizes a stored electric charge to fire kinetic slugs at speeds in excess of 7,000 m/s, enough to penetrate even augmented armor systems. During the pre-fire charge, the forward armature locks into position, stabilizing the magnetic field and helping to shield the user from backscatter and the excessive heat produced. Power generation remains the single largest drawback of the current design, the onboard capacitor requiring a significant amount of time to reach full power after each discharge.

The forge gun is a heavy weapon which primarally is used for anti-vehicle purposes. Although lacking in ROF, the sheer amount of damage per shot and the range of the weapon makes it a favorable choice for anti-vehicle units. Furthermore, its hybrid damage ensures its efficiency is even across all vehicles. A force to be reckoned with, the forge gun is a behemoth weapon made as a reply to vehicles of all sorts.

Soulja facepalms himself and tells the mongering immortals that forge guns are the antiMATTERial weapon right now

English please.
BTW. same concept
what kageoshi is reffering to would break the game.

A nuclear weapon converts only a tiny fraction of the matter into energy, while anti-matter converts 100% of matter to energy. I think people seriously underestimate how destructive it is. You can destroy a city with less than a gram. The only way an antimatter weapon could be balanced is if its used in extremely minuscule microscopic amounts.

Anti-matter is NOT to be kittened with.