To answer questions:

Aper, I did not ignore you. That was eliminated first thing when I started doing the Eastern units.

Levy archers are definitely getting an accuracy boost, but don't expect high kill rates at a distance of 180 meters, please! This will especially be true of horse archers, expect to need to close in order to achieve good kill rates with your limited 45 arrows.

You guys can now expect the Sweboz in addition to toe other factions in the next update. Expect them to be significantly better than in 2.1.1; for example, the Woithiz Watha will now have warcry, and Dugunthiz will come with 90 men and 20 defense, as well as a javelin attack of 10, high accuracy, and 3 ammo, with 5 shield to boot!

Here is how I imagine archers functioning:

-Levy Archers: Very cheap. Innacuracy means their main utility is aiming at large groups of enemies, not engaging in archery duels.
-Medium Accuracy Archers: Good for targeting units or blobs, and better at archery duels.
-High Accuracy Archers: Superb for targeting and weakening units, excellent accuracy. Should always win archery duels.

Also , can u make Costobocii Axemen usefull plz? geati don't have any AP now with the Falx changes.
The Getai are one of the most versatile factions in the game, this being one of their shortcomings - they are jacks of all trades, masters of none except perhaps skirmishing. I will check them (the Costobocii) out later, for sure.