I propose two kinds of movement for two scenarios: Flock (bird) and school (fish).
Flock movement is done when the whole of the group is moving together. A lead is chosen, and the mass of units follows roughly behind it in a fairly-stable pattern. The leader chooses paths, and the followers take a most-optimal-yet-unoccupied path to stay close. This could work for general patrols as well as having the mass aggro to some specific unit or location. Unit intelligence for most of them would be dumb; it's the lead which understands the surroundings. The rest understand the lead for direction and speed, their immediate terrain for pathing, and one another to maintain separateness.
School movement is an effect where if one of them is hit, the rest flinch and scatter momentarily. If one is killed, then the scatter is wider or for a longer duration, and perhaps the head will flock the mass to the aggressor or perhaps a new nearby head will split the mass into a second flock toward that particular aggressor.
I think mimicking nature for the mass bird/fish reactions would make enemies seem eerily familiar.
Flock movement is done when the whole of the group is moving together. A lead is chosen, and the mass of units follows roughly behind it in a fairly-stable pattern. The leader chooses paths, and the followers take a most-optimal-yet-unoccupied path to stay close. This could work for general patrols as well as having the mass aggro to some specific unit or location. Unit intelligence for most of them would be dumb; it's the lead which understands the surroundings. The rest understand the lead for direction and speed, their immediate terrain for pathing, and one another to maintain separateness.
School movement is an effect where if one of them is hit, the rest flinch and scatter momentarily. If one is killed, then the scatter is wider or for a longer duration, and perhaps the head will flock the mass to the aggressor or perhaps a new nearby head will split the mass into a second flock toward that particular aggressor.
I think mimicking nature for the mass bird/fish reactions would make enemies seem eerily familiar.