The new maps are absolutely terrible. They've been designed to just be ♥♥♥♥♥♥♥♥ and they are most often just broken around every corner.

The tech got stuck inside a room that couldn't be opened anymore and that was that, we were permanently stuck. I warped through the floor and got killed by falling damage. Aliens pushed me over a wall and I fell into a well and died.

Original Alien Swarm at least had maps that worked

The new maps are absolutely terrible. They've been designed to just be bullshit and they are most often just broken around every corner. The tech got stuck inside a room that couldn't be opened anymore and that was that, we were permanently stuck. I warped through the floor and got killed by falling damage. Aliens pushed me over a wall and I fell into a well and died. Original Alien Swarm at least had maps that worked