They Live - Chungo  made by  who_is_naven_r_johnson

This Sven Co-op mod conversion was made as an unofficial follow up to the map Delta Return (deltareturn.bsp) made by The-Real-Game

Story :

 After storming the Delta facility, the G-Man managed to find and murder the head scientist of the enemy complex. Without his vital information on the exact whereabouts of the holding cells and the hostages, you must hope to find the imprisoned Sven Viking in time without any help at all, before the worldwide portal storm overtakes the place!