has grouplink 3 ai mod that you add to other mods. Just cut and paste a few parts of one config to another. The read me explains it though it took me a few tries and looking at other mod configs that used SLX to figure it out. You could always try the SLX mod by itself before trying to add it to your current mods to see if you like it.
Some mods like FFUR
and the DMA unit replacement mods (Army, Navy, GRAA) already have SLX configs available. Just check the OFP mod forum for the post for each mod.
I normally run DMA Army or GRAA mod with ECP which improves the AI too. I've also added in the grouplink AI into a second config when I feel like playing with it.
The OFP/ArmA forums seem down right now though so my link above won't work, though the FFUR one does. Maybe try goodling SLX or checking other OFP sites.