Word of warning here as I discovered with XCOM 2.
ini edits carry over to Multiplayer. Which is great if you and your friends want to play a modded game.
Not so great if you all mod the game differently and end up un-balanced.
For example, with XCOM 2 I was fighting my friend, and winning only to discover mid-game the weapons had the same modded stats from singleplayer... Meaning I had an unintentional power buff.