Certainly, there is no verb that shows tense in that "sentence", so it could not be considered to be such. It sounds like a command with an explicit subject.
I would say you may get different opinions regarding it being a "reduced sentence with a verb implied" or simply a "phrase containing a subject implying command".
These questions normally draw many different perspectives; however, this note from Longman English Grammar book acknowledges a sentence as:
When we speak, we often say things like All right! Good! Want any help?
These are 'complete units of meaning', but they are not real sentences. A simple sentence is a complete unit of meaning which contains a subject and a verb,
followed, if necessary, by other words which make up the meaning
So, there will probably be two different points of view, and I believe that your "sentence" may be seen as a "complete sentence with verbs cleaned up" - You go over there!
Longman English Book