I could sit and ramble on about how infantry is the way to go, but infantry is not for everyone. If you feel that you can contribute better as intel I think that is the way to go. From what I have read you seem to be more interested or suited for it, you will do yourself and country a lot of good by goin with what you think you will enjoy more.
If you don't feel that you are the combat time and you feel that you have exceptional skills that could contribute more to your army if you were in intel, choose intel. You won't do your army any good if you are doing something you are not great at. If you can choose, go with your gut instinct