Aight man, I talked to a guy today who was a 25U Signal Support System Specialist or something like that. He told me that 25Cs do more maintenance on radios and such than anything else. He said if you wanted to get into that field you should try and get 25U because they do a little bit of everything that the rest of the 25 series MOSs do. He also said that promotions come easier to 25Us since they do a little of everything in their field. What they do in my unit is issue, maintain and repair electronic and automation equipment such as computers and printers and stuff like that. I don't have any 25Cs in my whole Battalion, but I have like 10-15 25Us.

That's pretty much what I found out for ya. If you got any more questions you want answered, just let me know

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