This is a pipebomb I've been working on during the last two and a half weeks. I wanted to see how much I could improve the original by completely redoing it from scratch, but maintaining the same shape and parts. I textured it in PBR first, then I tweaked the materials (a lot) to make them work in Left 4 Dead 2.
I was never sure if the original one was meant to be PVC or metal, but mine is metal... 😄 As for the confusing design: The fuse is what detonates it, the rest is just a trigger to activate the light and speaker and attract zombies once thrown.
The final mesh is 6,070 triangles.