Fosh....you are guessing
If there is a droid called alpha, please quote the line, describe the scene that it is in/mentioned in..
I'll answer the question :
The one I was thinking of, from ESB - Battle of Hoth
Luke : "Attack Pattern Delta ! Go Now !!"
Obviously, they taught Greek on Tatooine
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New Question :
Q. From the OT only, describe a similarity between the Emperor and Yoda ?