Thankfully, the short answer is: yes, there is an offline mode and you can indeed play the game in single-player. That being said, those of you who are planning on picking up Aliens: Fireteam Elite to play the game solely for its single-player, it's worth noting a few things.

Is aliens Fireteam single player?

Does Aliens: Fireteam Single Player Game Mode? Well the good news is Aliens: Fireteam Elite indeed has a single player mode. While you get the option to add upto two friends and take on the Xenomorphs, if you don't have friends, you can just use the game's AI.

How do I play single player on aliens Fireteam?

If players want to take on the Aliens: Fireteam Elite campaign solo, then they can simply head into the missions with matchmaking turned off in the options menu. They won't be completely on their own, however, as two AI bots will take the place of the player's teammates.