modification of the contents of this addon requires the author's (that would be me) permission. should permission be granted the content and derivatives of it are under the APL-SA license.

the contents of this addon are not allowed for any type of commercial use. that includes derivatives of it.

that includes using this as part of game modes/servers that have donation systems that are tied to ingame content as reward for donations or straight up fees, even if that content is not this addon specifically. also not allowed is the use of this addon on monetized servers that take a fee to play on them. pay2play is a big nono.
this means the use of this is only allowed in a 100% free context. that obviously excludes normal servers that accept donations without ingame content perks.

the use of contents of this addon (if permission was granted) is not allowed outside of arma games. that includes "very similar military simulators based on the RV engine".