I came up with a new advanced texturing pipeline that exponentionally saves time on texturing.
The model below is an AK-74u. I am not really a "gun person", but they usually have decent amount of texture on them and I've never modelled one before.
The model consists of 3495 quads.
Both of the pictures are rendered real-time in Blender 3D viewport.
And here's one of the 5 texture maps