They Are Billions Calliope Build 〈Fresh · SUMMARY〉

Before you can construct a Calliope, you need to ensure you meet the following prerequisites:

✅ – Calliope one-shots groups of executives, mutants, and giants. ✅ Saves resources – No need to mass expensive Snipers early. ✅ Defends chokepoints – Her AoE decimates runner swarms. ✅ Low population cost – She uses 2 oil instead of food/housing. they are billions calliope build