Version 778: Halloween/2v2 update hotfix

Hotfix designed to fix various issues with the Halloween & 2v2 patch.

[h2]Bugs we are hoping to address with this hotfix:[/h2]

• Fixed issue where local player's movement would desync, usually immediately after a phase change but in other circumstances as well
  
• Fixed unintentionaly forced primary swap on defender teleport
  
• Fixed defender ammo disappearing (game trying to give you more ammo than you can carry sometimes)
  
• Fixed picking duplicate tilesets in 5v5 map pick modes
  
• Added more pk57 mags into 2v2 map pick mode attacker truck (for fun in 2v2 gamemodes with more than 4 players)