1.what provinces can I recruit my faction's troops in?

2.where can I get steppe riders and scythian noble cavalry? Any other regional troops in the area I should know about? *preferably ones in seleucid territory since I seem to be at eternal war with them*

3.why do my galatian heavy speamen carry swords and why do they cost twice as much as hoplites with only slightly better stats and less men?