Fine shooter but
This is an example of what can already be done in the shooter genre: consistent design and a load of weapons/tools to use. However, since I played Borderland, I miss the open space of a real landscape, the great sights. I suspect the story was tweaked to go underwater in order to not having to cope with the coding problems of landscape. The rooms are dark throughout. You will like it all nevertheless but, still, something is missing.