The Battlefield 4: Weapons Crate Pack, alternatively known as the Spring 2015 Patch, is a DLC pack for Battlefield 4 that was released on May 26, 2015 as part of the Spring Battlefest celebration for Battlefield 4 and Battlefield Hardline. The pack features five new weapons and the reintroduction of the Gun Master from Battlefield 3. It also revamped the damage, falloff and suppression model of weapons among other tweaks. The client stability on all platforms have also been improved based on tests from the Community Test Environment.
The pack's weapons and Gun Master gamemode began going through Alpha testing on the CTE on March 30, 2015.
All weapons are immediately available after downloading the DLC.