There is the right way and then there is the slow way.
Quick Texturing Breakdown By Alexander Zelenskiy
Techniques
Substance Painter
Prop Texturing with Substance Painter
Texture a Game Asset in Substance Painter
Mari
Mari Texturing From Start to Finish: Texturing Props with Mari Smart Masks for VFX Production
Fusion 360
Texturing Articles
The Flare Pistol: Texturing and Lighting a 3D Weapon
Modeling Weapons for Production in Fusion 360