AAA Quality + PBR Materials 
Clean meshes and UV 
High detail with polycounts suitable suitable for 1st person games 
This is a collection of various props you would find on a rooftop. These include HVAC machines, power generators, piping, and a bell fan.
These are *HIGHLY* detailed models suitable for an FPS game where the detail will hold up upon close inspection. Each model comes with a set of LODs and diffuse, normal, and specular maps.
The polygon count for each model:
HVAC1 = 8073 (LOD0) / 3259 (LOD1) / 308 LOD(2) 
HVAC2 = 5663 / 1446 / 160 
HVAC3 = 3289 / 1563 / 96 
HVAC4 = 6206 / 2355 / 152 
bellfan = 1392 / 667 / 192 
generator = 2670 / 312 / 74 
pipe_set1 = 7133  / 2952 / 406 
pipe_set2 = 5408 / 2344 / 315 
pipe_set3 = 5268 / 2352 / 194 
pipe_set4 = 6605 / 2731 / 200 
pipe_set5 = 3824/ 1698 / 154