I'm a long-time 3ds max user. But recently for some reason, I've been forcing myself to learn Maya as quickly as possible. Once I have free time, I always practice modeling with Maya. It was very stressful and exhausting, but I just had to get over it. In this modeling practice, I used Maya for high ,low poly model and UV unwrap. Used Substance Painter to do material and texture, render in Blender and Unreal. There's still a lot to learn, but it's a good start.
Sci-fi gun concept by Mario Brajdich