Rush [1] filed a deletion request for zandronum-bin [2]: Hasn't been updated in ages, and it's reason for existing, being a binary version of zandronum, has been replaced by the regular `zandronum` package. Which now uses the binary package.
[1] https://aur.archlinux.org/account/Rush/ [2] https://aur.archlinux.org/pkgbase/zandronum-bin/
