Half-Life: Source Enhanced is an HD replacement pack for the default Half-Life: Source content. This includes models, materials, and map textures. Not to mention the other content that is also released in this mod.
This is the current state of the "On A Rail" texture update. The textures are from HLFX: Lost in Black Mesa.
I bet you took the Crowbar model from Half-Life 2. Note: It actually IS possible to use Half-Life 2 Models in the first Half-Life
Nope, It's Quads Crowbar.
Wow. All I can say.