The "MW" suffix frequently refers to , especially in the context of fan-made "Stuff Packs" or mod collections.
: Unique world instrument loops, such as sitars or flutes, which are a staple of his packs.
The filename likely refers to a compressed archive containing music production assets, specifically a combination of KSHMR sample packs and Most Wanted (likely referencing Need for Speed: Most Wanted ) themed sound effects or mods.