The Commonwealth Heroes Kit Pack comes with 4 kits from various nations of the Commonwealth!

The Commonwealth Heroes Pack comes with the following exclusive items:
-Ross Mk III Straight-Pull Bolt Action Rifle
-Charlton Automatic Rifle
-Vickers Berthier Mk I LMG
-Austen SMG
-Canadian Uniform Set
-Australian Slouch Hat
-Indian Uniform Set
-New Zealand Uniform Set
 

Once purchased, kit items are available in both singleplayer and multiplayer, provided CtB is installed. Purchased kits should become available immediately if connected to the official server, otherwise, try restarting the game.