1. Fixed safe spots in Hangar B (swarm mode)
2. Fixed a safe spot in Flooding (swarm mode)
3. Fixed a map escape spot on Industrial (swarm mode)
4. Added empty ammo sound when trying to shoot with 0 ammo
5. Added "EXP multiplier" to player stats on main menu
6. Added text to notify player about guns past lvl 60 requiring DLC purchase (if not purchased)
Safe Spot Fixes, Empty Ammo Sound, & More Main Menu UI
Source: Steam Community (opens in a new tab)