I picked up Warhammer: Vermintide 2 yesterday.
If you're unfamiliar, it's basically Left 4 Dead set in the Warhammer End Times universe. The enemies are hordes of rat creatures (who are allied with some human/zombie warriors in this one), and the settings are you standard fantasy fare.
I've never been a Warhammer fan, so I'm not all that familiar with this particular version. I just know the apocalypse is on and it's my job to murder as many rats as possible.
Much like Left 4 Dead, the game has an AI director whose sole job is to make your life a living hell. He sends hordes upon you, spawns special enemies and bosses (outside of certain points where hordes or boss fights are part of the level), and drops health kits and ammo for you.
I've played about half of the levels so far and I'm liking the game. It's frantic and gripping when you're in the middle of a massive fight and everyone is just trying desperately to stay alive. It's a flurry of hundreds of enemies mindlessly rushing you and allied powers and bombs flying all around you. This is the closest I've experienced in a game to nailing how it must have felt in Lord of the Rings during the set-piece battles.
Thus far, I've only played as the elf character, Kerillian, and only one of her classes. There are five characters and each one has three different classes. Each of the three classes is a unique spin on the character, with different passive and active skills. For example, my elf has an active volley skill that fires a handful of homing arrows. Her passive abilities include holding double the arrows, slowly regenerating health when below half, and no arrow damage drop-off.
I've been using a swift bow, which does less damage than a regular bow (which I can also use), but can fire off arrows at a ridiculous clip. I can also move at full speed while knocking back my arrows, which turns the game into almost an FPS when I have full ammo. The swift bow is so much fun because, during the horde assault segments of the game, I can just rapid fire dozens of arrows in a matter of seconds, downing rat after rat as they rush the group. It's great for crowd control, especially if the party is able to find a suitable chokepoint to weather the horde.
Complaint-wise, I think the game requires some balancing. There are times when I think the difficulty spikes to a ridiculous degree, and the game doesn't drop anywhere near enough ammo for a character like mine who relies on it to be at maximum effectiveness. I do have a melee weapon as well, but the class can't soak up a ton of damage, making melee less than ideal, especially against armored foes.
Visually, the game is gorgeous. There are some pretty incredible looking levels, like one where you're fighting through a city where a massive chasm has opened in the center. There's one point where you're fighting along buildings that are sliding down the side of the chasm and it's fucking awesome. The city seems to stretch for miles to your right, with buildings collapsing and sliding down on your left to provide you with a path forward. Still got about five levels to go too, as there are thirteen total.
I'd recommend it if you're looking for that Left 4 Dead experience. It's got some issues, and the menu system is obtuse, but it's fun. I've got three or four friends who have bought it already, and the game improves significantly with friends that you can easily coordinate strategies with.