Hello chr0ma! Wecome!
Also Jackoverfull (the one who compiles Mac OSX binaries) is Italian.
What do you need, which is not in the wiki manual?
(
DO NOT LINK) h t t p s : / / openarena . wikia . com/wiki/Manual
(
DO NOT LINK) h t t p s : / / openarena . wikia . com/wiki/Manual#Hints