maybe it would be nice if u added challenges or something (like, dont let ur hero die in a map) to get more points to spend on upgrades... rest: amazing game!
in level 4 i also used centaurs and placed them next 2 the way with some melee at the end and traps on the way. I prefere centaurs since they respawn faster...
what tech do you have? in lvl 5 I upgraded centaurs and placed them next 2 the road (where enemys cant hit them) and place 1 melee fighter near the castle (its better 2 place more of them on the way, but i didnt realise it the first time) and place some traps on the way... I dont remember lvl 4 so ill replay after the next map
johnSteel, centaurs level up even without killing, they gain exp from all kills, but they gain extra exp for a kill. Also, lvl 4 and 5 arent that hard (just wait, the later levels are nearly imp)
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