Harsh review ahead, sorry in advance.
Games like this I really find it hard to critique because it's clear to me that you probably used asset store stuff for a lot of content, but I can't tell which content you used it for, and it becomes very difficult to give feedback that's useful for you, and reasonable from me.
The guns and characters and animations all seem to be 3rd party assets, so I can't really comment on that, which raises the question of whether the movement system, weapon system, shop system and even dialogue system was created by your team. At that point I don't know what is what and where I should give credit. If you wrote the movement, combat and shop systems then they are fairly impressive, but if they are 3rd party they are not great and add nothing to the experience.
A key problem with this submission is there is no vision, or idea behind the game. Every feature feels like an incredibly cheap knock-off of a AAA game, and doesn't do a convincing job on any front for being AAA.
A large issue here is scoping your project, a AAA game has all these features but has hundreds of testers and designers and developers and takes years to test and ensure those systems all inter-relate in an interesting way, and a key element of AAA games is that while they have all the features your game has, and those features have been seen before, they polish them to an insane degree, which helps those games remain palatable despite being fairly generic.
Which brings me back around to your game, you have all these features but none of them are polished, all of them are things I've seen before and none of the game's design works together or delivers a new concept. I've played third person shooters that were better than this, I've played survival games that were better than this, nothing in this is novel or unique. The game completely fails to be interesting on any front and that's honestly my biggest gripe. Not only are all of the features poorly implemented, but none of them are interesting.
I think priorities need to be straightened out and next time you contribute to a jam you should scope a project that matches your skills, and creates an interesting piece of art for other people to consume, the quality is not as important as novelty and soul.
I'm sorry to be so scathing but I have to be honest here. I believe you and your team can make something better and more interesting, and I'd love to see it next time.