winter preparation questions

i'm going on winter leave from the 18th till jan 03 and i will be leaving my car in the base parking lot. it will hopefully remain untouched and on that note i am currently planning only to cover it. do you guys know of anything else i can do to ensure its safety? thanks

Sitting only a few weeks you shouldnt have a problem.

I would unhook the battery and possibly even store it somewhere.

Not only a theft prevention but it will save your battery in case you have a slight drain.