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alright, so i just got finished researching turbojet INT and got a theoretical breakthrough for rocket INT. anyone know what's the difference? which is better? should i research both?
Turbojet is far superior however you must research rocket to move onto turbojet. Eg: you have INT5 and want to move onto Turbojet INTs. The only way to do that is move onto INT6 then INT7 which are both rocket techs. Hold off on upgrading your INTs and research rocket and imp. rocket INT. This way it will cost 1/4 IC to upgrade them to Turbojet.