We have started deployment of  a new server update on all formats. This update has three bug fixes (and nothing else):

Fixes immortality bug
We have identified and eliminated a bug where players in specific cases would be rendered invulnerable.

Fixes broken spawn points in TDM mode on Strike at Karkand
We have identified and eliminated a bug where players would only spawn in a few places on the east side of the map.

Fixes a crash in Gun Master mode
We have identified and eliminated a crash issue in Gun Master mode. To definitively eliminate this crash issue, we have had to implement a change so that players can no longer move in preround in Gun Master mode.

It usually takes ~15 minutes on consoles for these updates to be rolled out. On PC you should see these updates in about 24 hours on a majority of the servers. Note that during the console server update window (for 15 minutes) you will not be able to play multiplayer.