if will be the same as water, but just try to get used to drinking water... how can you not like the taste?!?!?!?!?! See if you can find a brand that you like the best (I personally like arrowhead), or drink filtered tap water and a re-usable bottle (eco friendly!)
But this is a BAD way to start off learning army discipline. If it was your drill instructor who told you to drink water, and you drank anything else - you might be doing a heck of a lot of push ups for punishment.
It's the Army - you do what they say. Don't question it, they are doing it for your best interest.