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If I remember correctly, by the time you reach the center of the map, you can get to level 13 with Logistics on your "former friends," and one level less without it. Whoever reaches the center first wins. So, it makes sense to think first about what to take for the 12-14 upgrades. If "Chaos" isn't your starting faction, it's not profitable to develop it in this situation. Consider the probability of getting the necessary spells in the tower and the presence of Imps with the opponent (1 mana unit takes 4 Imps). Besides, "Chaos" without "Sorcery" is like the Paralympics. The map is small, and you need to rely on the initial skills. For the "Engineers," the Ballista is both a blessing and a curse – it can't be sped up, and morale doesn't affect it. "Fire Arrows" add a special charm to the Ballista, but it takes a long time to get to Daleb. Based on my experience on this map, Ingvar is much stronger than Daleb (although it was a while ago). I upgraded his Dodge and Reflection. The second skill is either Luck or Leadership – "Luck" is better because you can get "Magic Resistance" there. Logistics – if you're lucky, and the rest depends on the situation – what spells you find in the tower (it would be good to have "Haste" and "Dodge"). Hero development on the map reaches around level 20, so you can manage without magic skills. Runes are a good counter to Imps.