Engineering

 Engineering Cheat Sheet by the Better Building Bureau

The Quick Reference Guide to Base Building and AI gives you the starting tools and understanding of mechanics you need to build bunker bases. (This is a Pre "Entrenched" update guide. There have been many changes that can render some of the information obsolete, but the AI and decay mechanics still apply)

The Advanced Guide to Field Engineering offers creative insights into utilizing surface-level non-base field defenses to your advantage. (Pre Entrenched update guide. Foxholes no longer refer to the same thing, and some of the info may be outdated)

Bunker Health Calculator. Download and input the values you want to find out health, time to kill, and decay values.