We had a lot of salt about this back when it was announced.
Let's see, right off the bat, the second screenshot they have looks horrible. If you look, one of the zombies that's being fultoned has some kind of goey red circle around it. I'm not sure if its supposed to be a crystal sphere that's engulfed the zombies, a wormhole, or the most exaggerated blood spurt ever. But putting it front and center of their steam advertising with no explanation seems questionable.
The screenshot with the base building looks... pretty much better than the base building we got in V, not going to lie. More involved at least. However the base itself is clearly drawing influence from Fallout if you look at the player character in that screenshot. He's got a cowboy hat and a sledehammer. Yeah that's... not metal gear solid. And that's not a metal gear solid style base. Where's the improbably large metal structure full of dimmly lit hallways, impractical traps, and torture machines? What we see here looks more like the world's shittiest barracks surrounded by the world's least bulletproof wall. Hope it never gets attacked by humans, cause that right there is what we call a deathtrap.
We also see near the end the walker gears. Which your characters would not have been aware of considering where they got warped from. Its not a particular stretch to think that whatever Thor 3 style nexus you got sucked into would have the walker gears. But it just drives home how much this game is throwing all the assets from V together rather than making new content. The walker gears also make little sense in the context of Survive; having a walker that can run faster than a human forever, all the while wielding a minigun that presumably chews through hordes... that's not scary. At least if you were driving a vehicle you'd have to worry about crashing and then the zombies could catch up with you. Its the same reason Left 4 Dead never gives you an actual, military tank; that wouldn't be a zombie game any more. All I'm saying is it seems like they threw that in because they needed more content and didn't have the budget to make more, not because it fit.