"EDIT: actually venoms already have tactical ai (both for skirm and swarm), but apparently aren't maneuverable enough to use it, or something like that."
But if the skirmisher is outside its range and the venom is currently stunlocking a glaive or whatever it wont avoid the skirmisher fire,however if it dose get hit it will start moving randomly but thats usualy way too late,due to it being very fragile.
Makes it very difficult to use en masse cause you gotta micro them at all times and when u do that they end up stunning eachother making them even easier targets for skirmishers,maybe make venoms imunne to theyr own stun? That would at least make them usable.
Its quite sad really i think venoms can be a really potent counter to skirmisher spam,but as they are now skirmishers eat them.