Make a high/low prop, Unwrap it, bake a normal & AO map & Apply to low poly in 3ds max

UPDATE 2017: The low-poly model looks much better with chamfered edges. Also strive to eliminate all 90-degree angles on corners and surfaces for both the high and low poly versions, and adjust the smoothing group settings to minimize unpleasant hard shadow fall-offs and jaggety edges. Topics: 1. Make a low-poly model for a game that includes the normal, and diffuse map. 2. Create a high-poly version. 3. Transfer the detail of the high–poly version by baking out a normal, ambient/occlusion (AO), and a dif