Hello paradox people; it's been quite a while. Sorry for the thread necro but this seemed like the right place for this.
Do not ever mix Light cavalry and Horse archers, you can have HC mixed in with LC but LC and HA tactics are so horrible mixed together that it can totally ruin a battle for you. If you really want to use horse archers put them in their own flank, but beware of other nomads as light cavalry flanks will totally destroy HA flanks.
I'm confused by this; am I reading the
Combat Tactics page correctly? If I'm reading it right, having more than 65% HA disqualifies you from "Swarm" or "Harass Swarm", leaving only Disorganized Swarm and General Skirmish as available tactics. That would make HAs pretty terrible outside of the Pursue phase.
Assuming you can muster up an Altaic leader of Martial 12 or greater, it seems like the optimal HA flank would have between 50% and 65% HA, with at least 30% light cavalry for the rest. This would give you a good chance at Harass Swarm (good for both HA and LC), the same chance of Swarm (bad for LC, still pretty good for HA), and a small chance of Disorganized Swarm (junk) and general skirmish.
That's not a perfect skirmish breakdown, but the upshot of this build is that when you go to melee you roll "Retreat and Ambush" and get back to skirmish basically every time. That's what you want since HA are junk in melee (and that's also why you probably shouldn't mix HC and HA). You could have as low as 51% HA and still have the same tactics, but the HAs are much more useful than the LC in this build so you'd want to push up closer to 65%.
Oh, and these guys are useless in forest, woods, mountain, jungle, or marsh, and bad against opposing LC. All in all... yeah it's not perfect by any stretch, but I think it's the best you can do with HAs, and it's pretty strong on flatlands against non-LC.
--
Similarly, pure LC armies would roll "Disorganised Harass", which is a pretty bad tactic. If you have access to Camels, then a mix of LC and Camels is great because you can get under 75% for both, and roll Harass in Skirmish and Raid in Melee almost all the time (assuming Martial 12). That's a pretty perfect tactic combo for them; about the only possible upgrade would be to look for a Cruel leader so that you get the "Charging your own Skirmishers" tactic when you charge, but that's kind of a side detail.
--
HC are the one mounted unit that does seem to work fine by itself. it seems like the best trait to look for is a M14+ Defensive/Inspiring leader, as this makes Inspired Defense trigger most of the time in skirmish phase. If you have an Aggressive/Brave/Cavalry leader, try to sprinkle in at least 1% Light Cav to enable Heroic Countercharge, but keep it under 20% LC to prevent Raid from triggering. If you have a leader who has a trait from both Defensive/Inspiring and Aggressive/Brave/Cavalry, then you would want between 1% and 5% LC, so that you can trigger Heroic Countercharge in melee but don't roll Harass instead of Inspired defense in skirmish.
Oh, and if you can get a Frankish, Occitan, Norman, German, or Breton leader, just do that (and run pure HC for the insane Couched Lance Charge tactic. Preferably defensive/inspiring leader so you can go from Inspired Defense to Couched Lance Charge.
--
So, in conclusion, the best nomadic army breakdowns appear to be, starting with the best:
- Pure HC (with a small percentage of LC if you have certain leader traits)
- Split of LC and Camels (at least 25% of each) with M12 leader
- A little under 65% HA with the rest LC; M12 Altaic Leader
Or maybe I'm misunderstanding things since I'm still learning the game. But that looks right to me. So if you have access to HC go that way. If you have access to Camels but not HC use the LC/Camel mix. If you have neither, use the HA/LC mix unless you're fighting in forest, woods, mountain, jungle, or marsh.