-They ruined the Rodeo system
-Maps are beyond horrible
-no AI, which is very important in TF because it helps you get your titan faster and makes you complete challenges easier to level up
-no timer for Titans, so you don't wait you have to kill someone to make you titan come, kinda like killstreak
-Can't change the weapons of the titan, so each titan can only use 1 weapon
-no Attrition mode
-Titans gameplay completely ruined and unsatasfying
-Grapple hook is one of the worst ideas they have added in the game, and they haven't even done it right
-TTK is now like COD
-LAG
-they removed the normal XP leveling up system and added a system where you level up based on points you get by winning or completing challenges, for example, to level up from 7 to 8 you need 15 points
this is coming from someone who bought Xbox one ONLY for Titanfall 1, reached generation 10( prestige) in the first 2 weeks of the game's release, and did not regret buying an xbox one for a MP game that lacked on content because it was FANTASTIC, all they had to do for the sequel is absolutely change nothing from the first game and instead just add more weapons, items, maps, titans and we would have got ourself a Uncharted 2\Assassin's creed 2, but instead they took the first game and completely trashed it
i doubt we will see Titanfall 3 when TF2 fails, not only the game is a major step down from what was a masterpiece in my opinion who got hated so much for being an exclusive, they also are releasing the sequel to it 1 week after BF1 and 1 week before COD:IW, EA just signed Titanfall's death certificate