Well getting your own trash helps.
Hussar meat shield vs skirms so skirm or hussar can help vs that combo.
Remember that if they are 50:50 skirm halb and you are 100% hussar then the skirm are worthless and the hussar outnumber halb 2:1.
Vs trash generally you want your gold units in the back and trash units taking the damage.
This is much harder to do with knight+skirm than arb+hussar.
With swordsmen get the final armor and 2hs and supplies and stick with that.
Lots of people are put off by the time and cost of champions which are equivalent to paladin really.
Any gold unit + trash unit combo should probably beat trash unit + trash unit combo.
Knight + skirm: skirms soft counter halbs and work against skirms, and knights to raid and outmanouver and stuff.
Archer + hussae: archers beat halbs easily and hussars kill their skirms.
Mixing in siege will work wonders.
Scorpions kill this and you don’t even need any upgrades, just basic unupgraded scorptions wreck the halbs and skirms.
Of course skirms take longer to kill but they die none the less.
You can always include one mangonel to help clear the skirms faster.