I just tested this asset and it works fine. All three vehicles spawn.

Have you used any custom assets before? It sounds like you have not. You just click Subscribe and then play the game and these vehicles will appear -- if you want you can use a mod like Advanced Vehicle Option to disable other types of vehicles, but if you do and you do not have a custom asset of that type, the game will display annoying "Null Object Reference" error messages.

Anyhow, these are just vehicles, they have no scripts, so it is not these assets causing your error message, but something else.

The tanks are just props to show-off these assets in an "alien invasion of Earth" scenario.

and why is there tanks?!

how tf do i use this? cus it kept saying "broken script" or something

Some of the assets shown in these screenshots no longer exist on the workshop, sadly. Others can be found in my Collection: Post Apocalypse Future

how do you get destroyed buildings?

I had a nightmare with objects that looked like this. It was very bloody. Thanks! I really love these kind of objects.

...wellllllllllll......maybe a little bit.

absolutely responsible for nightmares