Multiplayer in BO4 has a higher Time-to-Kill (150 HP) and no automatic health regeneration, meaning you must after every engagement. Best Specialists for Beginners :
: Always build the Shield as soon as possible. It is your most important defensive tool in every map.
: Very straightforward; use her Cluster Grenade for area damage and War Machine for clearing rooms.
: Great for offensive pushes; his 9-Bang stuns enemies while his Ballistic Shield provides mobile cover.
: Provides unlimited sprinting, which is vital for "training" (leading) zombies.