Another thing is to use catabarian circle ONLY when facing MISSLE units, otherwise you run into a few problems. For one thing, your troops will simply exhaust themselves for no reason, if there is no incoming fire, youre only making them easier to catch by the enemies swift light cavalry forces. Also, when being charged while performing the circle, you'll likely find they have trouble making it away in time when going against cavalry, but its less of a problem against infantry, so be ready to move them manually.
As for the sacrificial HA, that is a very valid and actually probably one of the better moves. A good general knows who to preserve and who is expendable. If by allowing your HA's to take a few thumps from the cattas means your get to charge them from the rear and send them running off the map to rust in the desert, then all the better. The key is to try and not get too attatched to any army you may build. While it's ok to be proud of the achievements your "ultimate army" has accomplished, you shouldn't hesitate to commit them to a risky manuever if it means victory in the long run.
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