"First-person shooter" is a pretty broad genre.
Tribes 2, Battlefield 1942, and the first year of Planetside 2 (minus the 'progression' nonsense) are my benchmarks for tactical shooters. All were combined arms games with a lot of tactical depth, generally low TTKs, though generally a bit lighter on the simulation aspects than I'd prefer.
Frankly, I was hoping Odyssey infantry combat would be something reminiscent of Planetside, given the other aspects that seem to have been inspired by it, but less grindy. Unfortunately, it's worse in essentially every aspect I can think of.
Interesting to think that stone cold classics like Half Life 2 & Goldeneye and even Doom do not have "essential" modern mechanics like body dragging, leaning and X-ray vision and auto target lock that have been mentioned elsewhere.
Also anyone who read Masters of Doom might remember that body dragging/Hiding was actually removed from Wolfenstein 3D as it ruined the pace, so some assumed "essential" mechanics aren't really anything new or would make an FPS "good" despite what some YouTuber who has never designed an FPS says.
Most of my favorite shooters have no such mechanisms, but they are also of a more direct combat oriented scope than
Odyssey is trying to be. Being able to move bodies in a game that has major stealth elements
is a pretty essential feature.
Leaning is a nice feature to have, but certainly not something I'd consider essential.
This is the first I've heard of the claim that target locking or x-ray vision would even be desirable in this sort of game. When it comes to Odyssey, I think the omniscient sensors are bad enough.
I forgot about Golden Eye, played that on the N64. It was a good storyline
Golden Eye is one of the those games I played a lot as a teen, but which doesn't hold up well at all.
It has to be fun, it has to be engaging and well balanced. You can argue till you're blue in the face whether a game has leaning, body dragging, ect... But all that is window dressing.
Some mechanisms are mandatory to convincingly depict certain settings/situations. The core shooter elements should be the foundation of all of this, however.
One of the best FPS games I played and had the most fun at was Battlefield Bad Company 2, the Vietnam DLC. Limited weapons, limited maps, no prone but we had the most fun every weekend mornings killin and chillin. For me, I like to play with and against my friends. Playing against AI is not my thing.
NPCs are indispensable in a setting of Elite's scope. The problem with Odyssey here is that the NPC behavior is not up to task.