Breeding for IVs is mostly the same as in the main games, though IV stones make it easier to get a 5 or 6 IV ditto as well as in team building if you farm them. There’s some minor difference in move inheritance when compared to main games as well, males can pass down TMs/HMs in addition to gen 6 breeding mechanics.
https://wiki.p-insurgence.com/IV_Stone
We’re interested in keeping discussion within the rules though.