Danger of Collapse Part 1 (maps/sc_doc.bsp) made by Silencer.

Reskinned Houndeye (models/danger_of_collapse/superhoundeye.mdl) made by Silencer.

Catwalk frame texture (maps/sc_doc.bsp -> doc.wad -> {doc_frame) made by Sph!nx.

Catwalk frame light texture (maps/sc_doc.bsp -> doc.wad -> {doc_framelight) made by Sph!nx.

Snow and Rock textures taken from as_tundra.wad from HL Mod Counter-Strike.

I used some textures from submerged.wad, which was made by Blazeeer.