1.U send ur ranged units out 2 far from ur main body and leave them vulnerable to attack by cav.//solution//keep ur ranged units close to ur infintry if u insist on sending them out send them out with strong smaller support units and if they move there main body toward u pull ur units back and push ur main body towards them make use of the double tap to make them run or use run bar keep ur infintry units compact n atack a single point and keep pulling ur units in when they proceed to chase there people routing
2.U send ur inf units to. Spread apart and u put the star in front which is ur general wich keeps ur units.from routing (runing away) make use of the multiple unit movement feature and send units in clusters for better outcome
3.U send units against the big spear wich is the strongest unit only another spear of its kind can equal there strength but if ur big spear is gone or to far they can be defeated if u send multiple units but they will cause the skinny spear to route if u send them its better u use ur swords as there professional units use an archer unit as a meat shield in his front and surrounded there flank(back)with sword units but a warning they will kill a few if not all ur units if they have support units so its better u lead with all ur inf units if u want to defeat there units whoever keeps tighter unit control in the skirmish(the pile of units fighting) will win .
Those r a few tips that help there r many styles to fight but these tips will give u a basic knowledge and a chance to compete MAKE SURE You use multiple unit movement feature by holding unit till buble expands then click desired.units to move then drag and place click the gound or another unchosen unit to release u from shifting units futher cause if done improper can cause u to mess up ur destination sometimes glitches but not often hope it helps.