Q3 BSPs can only be used in freeware games, due to id's BSP compiler license limitations. Half-Life has an open source BSP compiler called ZHLT, this is the main advantage of using HL BSPs instead of Q3 ones, and the main reason why i made BSP Factory.
Anyway, after finishing the things in my to-do list, i think i will add support for Q3 and Q3 files too.
Anyway, after finishing the things in my to-do list, i think i will add support for Q3 and Q3 files too.