Challenge Mode

Challenge Mode was a gamemode that was to be included in Battlefield Vietnam but was later cut before the final release. The mode allowed players to play by themselves and complete a series of missions against enemy bots. Some of these missions ranged from defending a flag against enemies for 3 minutes with only a pistol, or capturing all the flags on a map using only a helicopter.

A similar mode, Onslaught, was later created for Battlefield: Bad Company 2.