Play Fort Vanguard: ShareMyGame.com by GameDev.tv
I spent a lot of time adding to this project - I had to cut myself off because I could probably spend a lot more! Some of my additions include: custom models, a custom animation system, various defenses, enemy waves, and menus.
The material you made is amazing, I admire learning
I played it and it is awesome piece of work!!
Love how you put it all together, lots of effort. I don’t see difference between Duke, Jarl or Sheikh faction, maybe I am not looking in correct spots to find out 
Upgrading the defence towers would be also great possibility, but I understand that you had to move to another project
I appreciate it! 
Faction choice determines visuals for your headquarters and soldiers (though the soldiers are small so it can be hard to notice).
I know what you mean with upgrades and I could probably make the factions more distinct too. Like you said though, one can spend infinite time on these projects! 
