XBM v0.23fix for PR 1.2

Here we go again with the updated version of XBM 0.23, the q3 enemy sounds are removed and replaced by some internal q4base sounds.
Hiho, Here we go again with the updated version of XBM 0.23, the q3 enemy sounds are removed and replaced by some internal q4base sounds. Of course you can still use the s_altEnemySounds command. Be sure you try both options: s_altEnemySounds