Job: Animating models - workflow video call

I'm looking for someone familiar with modelling and animating in Blender to teach me how to take a weapon model I've made and give it animations that can then be imported into Gmod and used for a SEnt. (These aren't anything organic like SWeps or player models, theyre heavy weapons and artillery pieces.)

I want to understand the workflow better and can use it moving forward for my other models. It should take about an hour or two at most, as the animations are very simple rotation/elevation type things.

I'm already familiar with making models and compiling them, and I know the basics of animating when it comes to keyframes, but bones and compiling models with animations has been giving me trouble.