I think you kinda rushed it. When you tried to execute it you forgot to discoverfile (Well I dunno I think you can still also do transmit datablocks). You forgot to mention to point the gun towards the purple line. in the beginning you waited till the end, yet that is helpful kinda cause it'd let people know what happens when they don't align the weapon. I'd say you did a nice job, but waited till the end to point out some other things like adding textures and alignment.