Weird battlefield graphic effect

[Didz]

I thought I'd try out a horse archer only battle just to see if they are as good as everyone says they are.

It was a disaster but that's a diffferent story.

What really confused me was that as I was watching the action I kept seeing small groups of what looked like crouching archers appear close to horse archers. Almost as though they had dismounted. They would just appear on the screen for a few seconds and then dissappear again.

I was trying to work out if there was any pattern to the occurrence but the only thing I thought might have been triggering it was situations where the horse archers were being driven off by enemy cavalry. The unit seemed to gallop off and leave these crouching archers behind to confuse the enemy.

In fact it might be my imagination but it looked as though this ghost unit was distracting and being charged by the enemy horse, a bit like a decoy.

Weird anyway...my guess is its some sort of graphic gliche but I've never noticed it before, and I haven't even been drinking today.