The one part of the Infinite Warfare MP beta that got some attention (but not enough) is the supply drop and crafting system that allows you to add extra features to weapons, which will also give you an advantage over other players.This is the crafting screen - in the screenshot's example you can use it to add a killstreak and reduce the recoil of an NV4 (assault rifle). Of course, that's the Legendary tier so you need to first craft all the lesser rarities. Unlike Advanced Warfare's variants, there are no stat reductions in another stat so the example Legendary NV4 is just flat out better than a normal NV4 and gives you an advantage over those that don't have a "variant" of their favorite gun.The problem here is that you need to collect a currency called "Salvage" to craft. From my beta playtime I got around 7-10 salvage per game. To craft the best (Epic) version of a gun, you needsalvage (200, then 540, then 1600, then 3500). Assuming you get 10 salvage every game (and that's probably not happening), you need to play 584 games. A COD match takes anywhere between 7-15 minutes to complete - assuming 10 minutes per game, that's 97 hours to complete one gun.Because that takes some dedication, there is an alternative! You can give Activision a thousand dollars and hope that the Supply Drop RNG loot boxes give you the goods! Supply drops were already horrible in Black Ops 3, because all new guns were put into them, but now they are giving you better versions of guns that are already there. This game also has map pack DLC, so they are getting greedier than ever.tl;dr version - COD IW has gun stat boosts, getting them takes an eternity unless you pay Activision money and get lucky. Remember to buy the season pass!