Yah, different people say different things because there are so many ways to get into med school in Pakistan depending on whether your going private or govt, then whether your going to go as a local or as a foreigner. I would suggest you go to shifa though because as a foreigner its totally hell in a govt medical college, but it seems their pickier lately so that they may seem more strict which may help them in getting their official long-term recognition.

If you go for a govt school though, I would highly reccomend you fight for a college in a city your originally from or have relatives, because the dorms/hostels here are totally unfit for even trailer park citizens of america to adjust to, ie food, sanitation, facilities, people. Very low par, but you will hear most students here love them. Avoid Multan and Bahwalpur at all costs as these 2 are in very HOT and remote areas of the country, you will get depressed fast and not be able to find anything to do for fun. Lahore would be decent as you said your from the area. Many foreigners choose RMC strictly because its near Islamabad which is a Major plus for most.