@BRUCE_WAYNE_TDK - I have a video that explains how to add new weapons, attachments, make the sights work, etc. (you don’t need to animate any guns).
Regarding how to add leaning: look inside the character’s anim BP (AB_DemoCharacter), there’s already leaning back and forward when looking up and down, it’s just not to the sides, it’s back and forward instead. To lean to the sides you’d do something similar to one (or more) spine bones, triggered by a character input. If you want, you can also join the Discord channel.
If you don’t mind, just send me an email please with your Order ID, and I’ll share the video and the Discord channel…
Thank you!