Just noticed that ArchLinux doesn't only always include the latest stable version of Warzone 2100 in its repositories, but also provides latest warzone2100 betas via its AUR ports system.
You can install (currently) warzone2100-3.1beta2 as easily as:
It will be still compiled from source, but it will be completely automated, no need to look for dependencies, and it will be installed as an ArchLinux package.
Proof link.
P.S. Tried it; it actually works (: