Nothing really happen to it, OcMod just exists, by default, and FIRST CHOICE, from a Server 'point of view'.
So, whatever you plan, if you want to make sure, then, create a Mod for both of them, i.E., if you design relative simple strictly VqMod-Like Extensions. It's not complicated at all, in contrary, in most cases, one, not specifically familiar, would not be able to find out, just by looking at the plain source, if an
XML file Mod has been created for a VqMod, or then an OcMod.
And after one has designed one of both, it takes a minute or so, to create another Sub and/or Files, to be placed, depending on the user requirements. IN MANY CASES, I checked on, but just don't take it for granted.
It's not advised, to have/use both of them, but it's not advised to drive Car and drink Beer either. So, usually, not much will happen, it all depends on how many of Both Types are ordered to make their Job. And each and every Crossing enlarges the Risk, to get hit, potentially, for a not even drunk Driver as well as for different kinds of Mod's, eventually trying to use the same Place, at the same time, uncoordinated, to start to do their Work. Very fundamentally spoken.
If you know, what I'm trying to tell you...
Ernie