I left my hideout wearing the appropriate uniform and carrying an attitude to match it, which would hopefully fool everybody for I was to be an infiltrator this day. Deep within enemy lines I was going to go. 
Dressed as a member of the Operation Center's motor pool, I drove away from my hideout but was tailed near immediately. I was not used to operating during daylight hours and maybe I had already blown my cover so I accelerated coolly but briefly, then pulled over slightly and waved my (now two) tailgaters to pass. They passed me by and kept going- while I breathed a sigh of relief.
Driving towards my objective, the stream of traffic I found myself in was heavier than I had anticipated and it was moving fast so I blended into the pack and matched their speed to remain unnoticed until abruptly peeling off, like they often did, indicating that their (and now my) objective was in sight. I pulled silently into the Operations Center's vast parking lot, and made my way towards the facility.

A few officers and some enlisted personnel eyeballed me curiously, or gave me hard stares, as I entered the Operations Center. It was not normal to see ones of my rank checking out equipment at this hour but it occasionally occurred, due to some ranking member being Away On Leave or even AWOL, so even though I was a curiosity, I wasn't challenged. Were I to be, I knew the appropriate lingo to use for I had been studying my target for quite some time. 
Leaving the Operations Center two minutes later, I climbed into a transport, started it, and began to drive. Personnel at the Operations Center Exit Gate eyeballed me for second, then waved me through. I or someone like me had been seen driving a transport before, it was nothing new, though it was unusual to see a motor pool member other than one of the usual few. 
Whew. I was in. Making my rounds between the airport landing site (Adam 17), base (Charlie 16), and a few others, I called in the appropriate radio codes. My voice was unfamiliar to the long-term personnel at the Ops Center but my delivery was flawless for I had practiced calling these radio codes back in my hideout, and due to that, I was not challenged in any way. 
A few hours in, I knew I was likely to ace it because so far, my mission had been a success. I actually found myself getting bored. Infiltrating the OPs Center motor pool had been easy, but I knew I had to stay sharp. Eyes were occasionally on me, studying me, perhaps thinking that I would attempt to return again (should I be so bold) on the morrow. These watching eyes I could not trust for I sensed malice in them and they made me very nervous. I told myself to remain aloof and act natural, but it was difficult. I could feel them scanning me, puzzled as to why I was there, and maybe going so far as to approach me and ask questions, or check the duty roster. I had my alibi at the ready and was prepared at any moment to use it but this game of cat and mouse continued in a tense, unspoken way, neither I nor they giving any clue as to what the next move would be. 
It was in this way that the remainder of my time behind enemy lines passed, until I had gathered up all the resources I had infiltrated the base for. Exiting much the same way I came in, I saw ones of my rank walking my way. I dodged them until I was safely again in the parking lot, lest they accidentally identify me through hailing me in greeting and break my cover. 
Soon I was racing away from the Operations Center, my mission a smashing success! I had achieved my objective-

  Pulling a shift on DAYSHIFT.