I'm most of the way through it now. It feels like they crossed Call of Duty with something Capcom or Platinum might make. There is an oddly Japanese feeling about the story mode.
It might be the enemy variety, it might be the fast gameplay, the art direction kinda looks like Vanquish or Lost Planet. I think what it really might be though is the sort of humble production value which gives me the impression Titanfall 2 had a considerably lower budget than Infinite Warfare or Battlefield 1, so Respawn had to go back to presenting it like a PS2-era game except with some things it learned from making the Modern Warfare games. A big standout is how Titanfall 2 has regular loading screens. It doesn't use cut scenes or some other barely interactive thing (like slowly walking down a hallway) to hide the loading screens. Maybe what happened was that EA felt confident about its quarterly earnings because of Battlefield 1, so Respawn ended up getting a bit more creative freedom (and a smaller budget) to do what it wanted to do with Titanfall 2, and the result was a short but shockingly creative story mode.
Where it ranks alongside Wolfenstein and DOOM for me is probably gonna depend on its replayability. I beat Wolfenstein at least three times to get all the stuff and just because I wanted to. I still want to go back and play DOOM. If I end up wanting to start up Titanfall 2 again after finishing the campaign I'll probably buy it on PC. Right now though DOOM feels like it was the meatier game in terms of what all there is in it.
Given the relationship between the development teams, it's gonna be very interesting to see how Infnite Warfare's campaign stacks up.
Edit: Titanfall 2 would definitely be a must--buy for me if it had a survival mode of some kind.