I've written this so many times now... Dull, human-focused, military-themed. Washed-out colour pallet. No plot until the last two missions. More sensible (i.e. boring) base player traits. Unbalanced sandbox. Only 2 Invasion maps at launch. Voting in Matchmaking. Bloom. Forge World lacked an enormous, flat, open area (a la Sandbox) Paper-mache (?) vehicles. Not the best music. Hard to make Forge variants work with different gametypes. I'm sure there's some more stuff, but I can't think of it right now.