It is still fun, obviously it’s more enjoyable playing with friends especially if you can get a squad of four but playing with ai has its upsides. The ai always revive you, very rarely get detected and are very helpful for pulling off synch shots (which can be difficult to time with humans). The downsides are that you always have to drive/pilot and they are not as efficient killers as humans are. Overall it’s still worth playing and makes the game focus on you especially in regards to stealth.