Multiplayer first person shooter games with 4-player online support

Battlefield 2042

Players: 4 local, 0 online

Quake 2: Co-Op Or Die!

Players: 4 local, 0 online

Insurgency: Sandstorm

Players: 8 local, 0 online

Battlezone

Players: 4 local, 0 online

RAID: World War II

Players: 4 local, 0 online

Band of Defenders

Players: 4 local, 0 online

PAYDAY 2

Players: 4 local, 0 online

Call of Duty: Black Ops 4

Players: 4 local, 0 online

Fallout 76

Players: 4 local, 0 online

Borderlands 3

Players: 4 local, 0 online

After the Fall

Players: 4 local, 0 online

Call of Duty: Black Ops Cold War

Players: 4 local, 0 online

Tiny Tina’s Wonderlands

Players: 4 local, 0 online

Redfall

Players: 4 local, 0 online

Serious Sam 4

Players: 4 local, 0 online

Conflict Global Terror

Players: 4 local, 0 online

Borderlands 3

Players: 4 local, 0 online

Serious Sam 3: BFE

Players: 16 local, 0 online

Fuse

Players: 4 local, 360 online

Call of Duty: Ghosts

Players: 6 local, 0 online

Serious Sam 2

Players: 4 local, 0 online

Blacklight: Tango Down

Players: 4 local, 0 online

Homefront: The Revolution

Players: 4 local, 0 online

America's Army: True Soldiers

Players: 16 local, 360 online

Call of Duty: Black Ops 3

Players: 4 local, 0 online