It's not hard to see that it is awesome. I just wasn't aware that it exists and so I guess I've never trained the troops in a studious enough way. Do you need every single one of these then?
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I guess not, right, since one of them is naval.
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But all the others then?
Edit: Just realized that Bombardment 2 is also naval.
Edit 2: The reason I have not come across Range
as a land unit promotion is probably that I like Cover I (33% protection against ranged attacks) and Cover II (the same). Strangely enough, the Civilopedia lists them as melee promotions, even though they are available for ranged units too. This and the fact that the Civilopedia jumbles land and naval units together causes a slight lack of clarity.
This has been a typical promotion path for me:
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