There is a few reasons why I don't recommend this game and there are some positives about it as well.
Deadside is a mixture of Rust and Dayz, yet it lacks on both. In Dayz, there's wildlife, however if you kill it, you get meat that will last you several hours upon several hours of gameplay. With this game, you get only a few meat, you can only harvest it with a knife. Only, A. Knife. You can't use a fireaxe to chop the meat. Wolves provide 0 meat on harvesting. Only a head and pelt. The heads to each animal is essentially useless. The wildlife is very lackluster.
AI is a whole different issue, they know where you are all the time as soon as they spot you. They have some "memory" function that lasts maybe a couple of minutes, but in that couple of minutes, they know exactly where you are and will hunt you down, regardless if you just ran into a building or behind a wall. I'm not saying it's terrible but however they start shooting you even if you're head is a centimeter in a FOV.
Bunkers do exist in this game and I've managed to run into one myself. The turrets in there are completely bullshit. In a fraction of a second if they see any part of your body whether in their aiming range or not, they instantly shoot. It seems like in order to do bunkers, you have to farm for countless hours by either gathering enough grenades or carrying 1,000 rags to go in there and heal constantly. No offense, not in the mood either.
Vehicles aren't so bad, you can find motorcycles and jeeps. You will never get air time as it always stays on the ground no matter what. However it's not like dayz where if you hit a tree or tiny rock and you blow up and no longer have a vehicle.
This game is really like Rust in a progression sense, farming for countless hours just to upgrade shit and whatnot. Building is just like Rust, nowhere near like Dayz in any true form or shape. I have a job and I'm not going to quit it just to go fulltime Deadside so I don't get raided by the local pvp and raid hungry guy.
I really wish they would check and balance their game because it feels very underwelming and I don't think I can continue to play if it's just consistent grind and grind and grind and grind all the time. The player base isn't terrible, not every server is fully active like rust but that doesn't mean it's a bad thing either because who wants 50 people running around with shotguns that you just picked up when you just got in the game. Not particularly me.
I will complain that the inventory system is jank. I can't put an empty bag inside of my bag or inventory. Food and water deplete really quickly, much faster than Dayz and Rust combined. So you have to really be going out there and "farming" for food. Water isn't really an issue as there is wells and bottles you can pick up and then refill at wells just like Dayz. There's a lot of QOL stuff that could be added.
So overall, I just don't recommend the game unless it's 50% off, if I could refund it at 7 hours, I would, however, giving the game chance after chance, ended me up at 7 hours of playing time.