The mod is live.  

Updated the steps as well as the file on how to contribute to 0AD git in case you ever want to pull request. I'm cancelling to publish the mod to mod.io since I don't like managing another account and my mod hadn't been signed since I last DMed him from 7 weeks ago(I don't want to disturb him) but feel free to orphan it that final version there. In the file of the content, everything is set to height 1.0 and code is clean, as always my preference, have a great day. Thanks to @Vanthaand @guerringuerrin for the help 

Yeah but it's not implemented

Hi @fudini, welcome to the forums. As you can see, the Temple of Vesta IS a town phase structure, so it doesn't make sense to build one to get to phase2. Do you happen to have a screenshot where it says that? Generally, if you select workers the structures they can build are shown in the bottom right of the screen.

Eco matters a lot more than it looks at first. You need a steady flow of resources before even thinking about big fights, otherwise you just stall out. The whole game loop is basically economy - army - timing your push, not just constant fighting.