Also this game has been mired in mild controversy the entire time it's been live because the dev team is genuinely incompetent ie, they released an update that included new purchasable armor that eliminated electric damage, ie a buff to electric weapons.
The same update made using electric weapons crash most games.
The released a new mech that could fire rockets. The rockets would explode immediately after firing in some cases because they would recognize a collision with the hitbox of the mech you are firing from. That's like, my-first-unity-game level bad programming there.
They released an update that supposedly fixed enemies spawning. The actual result was enemies spawning within view, constantly, to the point that even the easier difficulties would overwhelm you. I'm talking you kill an entire patrol, turn 360 degrees, and an entire new patrol spawns directly on top of the corpse of the previous group. The way the game works, this makes it essentially unplayable.
The game's friend and squad management system doesn't work fully if you play on playstation. Since launch. It also fucks up sometimes on PC if your steam username is too short. None of the Steam user APIs work on usernames, they all use a numeric SteamID
If you aren't the "host" of the session (which actually isn't the actual host of the session!) "Damage over time" effects like setting enemies on fire, or using poison gas, do not work at all, ie 0 damage. That hasn't stopped them from buffing the flamethrower because their "Metrics" (lol) say not enough people use it. They've even released armor that buffs using fire without fixing that it literally doesn't work for 3/4ths of the group.
The premier anti-armor weapon the game has is a knock off of the Javelin anti-tank missile launcher. The lock on has never worked correctly. It sometimes refuses to lock on to an enemy vehicle 10 ft in front of you. After 4 months of complaints, the devs FINALLY put it on the list of "known bugs". When people ask what's taking so long, a dev posted an inane response on discord about how "ray casts are hard and have a lot of edge cases" as if ray casts haven't been a basic tool of game development for thirty years.
Like, Arrowhead is amazing at game "feel", Magica feels awesome, even if I've never been able to adjust to the control scheme. Helldivers one seemed really fun but my friends and I couldn't get multiplayer to work, like it would just ignore some players for no reason.
That reason is because Arrowhead devs could not program themselves out of a paper bag. It's always been this way, Magica was so crash prone and buggy that they added a spell to crash the game as a joke.
Plenty of dev teams are similarly incompetent. Hell, I've been that useless before. But they evidently do zero quality assurance, and don't seem to have good enough source control to know what changes go in what release. Many of the above problems are "this would be caught by a single person attempting to play the game, how did you not catch this?"