crafting

I'm wondering what the best ways to get all 4 xp types are. The Build, Power, Combat and Machinery points are what I'll be calling them because I have no idea what they're called Build (Red) Power (Yellow) Combat (Blue) Machinery (Purple) What's the best way to get each one?

Crafting and tech tree should be reworked. People complain that it is too grindy or too long to craft. In my opinion it's way too easy and actually has wrong approach. At this point in the game players are able to craft almost everything they need themselves without any need for the market or...