Oh nice, the missions trips are HUUUUGE pluses for you. While your gpa is on the low side, I know of people who have got in with comparable numbers.
As for me, I went to college right out of HS and flubbed big time. I had no intentions of going into medicine. The thought hadn't even crossed my mind. I spent 5 semesters there, failed 2 of those semesters (as in pretty much all Fs), quit, went back home and worked full time for my dad doing HVAC measurements in industrial buildings/schools/universities/etc. After a couple of years of that, we got a job where we worked in different hospitals around the state over the course of a summer. That was my first real exposure to medicine, and I liked what I saw. I started researching the different jobs available in healthcare, and over the course of a few months realized that I really wanted to be a doctor.
At the same time, I was looking to move. I was living in Indiana then and wasn't too fond of it so I moved back to my homestate of NC when I was 24 (6 years ago!) and started looking into options for school. I waited a year to gain residency again, and then started at a community college because I didn't think my state universities would accept me based on my past academic endeavors. About the same time that I started at the CC, I got a job in the ED working nights. I did that for 3 semesters, made straight A's with a science heavy courseload and then transferred to UNC-Charlotte. I continued working in the ED where I lived previously, about 30 hours a week at night to support myself while taking classes full time. I don't think I've taken a single exam since I've been at UNCC with more than an hour or two of sleep. Usually I get home at 4am and have to stay up the remainder of the morning to study for the exam. It's not been easy, and my grades show that. I'm definitely not a straight A student in the pre-reqs, and have C's in many of them. As you can see in my MDapps under my username, my gpa is far from perfect.I think what impressed the school with my application enough to accept me is the determination I've shown to get to this place with no help or financial support outside of what I can get through student loans, as well as the ability to really demonstrate that I have a real desire to help those who are less fortunate and/or underserved.
VCOM especially looks highly favorable on those who have a real interest in medical mission work, whether it's at home or abroad. They aren't looking for the smartest student out there, because it doesn't take the smartest student to become a good doctor. It's takes someone with reasonable intelligence who has the drive and determination to do whatever is necessary to reach their goal of helping others. I think I was able to convince them that I have that drive and determination.
Anyway, that's my story in a nutshell. Sorry for the mini-book. Good luck on your application. Hope to see you this fall!! Any more questions and I'll gladly answer them if I can.