I'm pretty sure this has been talked about before, but it's probably lost in the forum somewhere. (a favorite mission per pack, example being Faction, Developer, and Chronicles packs which each carry more than 1 mission.) Faction pack Personally I liked the Heavy Squad mission, reminding of the ideology of my forefathers, but the Kshatriya mission was more of my liking. It was an open-world type mission, showing us that 4A can make that happen in a future metro game. Developer pack The Spider Lair mission is really neat, I personally loved it but it was really short(like the Heavy Squad) Chronicles pack I liked the Khan level, it shows some lore about Polyanka that wasn't showing in the main campaign, or in any metro game so far. This also finally sheds some light to the station only hinted by Homer and Artyom in 2033 and 2034. whoope that was long.