The head/face is pretty old. I used the same one from my US infantry which in turn is based on a human soldier I made in Roblox. I want to make some more head variety but making heads is not easy. The guns were mostly built since April 2nd of 2023. I have made new guns since. And the basic character rig took 8 days to build. April 8th to 16th that same year. I basically reuse the same rig for my soldiers. I have some ideas on making a new and improved one but haven't gotten around to. Mainly higher quality model and better torso and arm animation. But that's a breadboard nightmare so I've been procrastinating.

how much time did it take?

This is the coolest thing ever