Jurassic Park Part 2: The Chaos Continues/Scientist Radios for Help

This is a very easy mission once you know where to go. There is a mix of dinosaurs and humans, including a few flamethrowers, but keep the machine gun equipped and just avoid the dinosaurs. (This will be your usual approach in missions that mix dinosaurs and humans.) Just keep moving right and go into the first entrance you see each time, except in the second area. In that one, skip the first entrance. If you enter it by accident, you'll know you're in the wrong place because you'll be attacked by a raptor (there are no raptors on the correct path). If that happens, just go back through and continue on your way. If you don't dawdle, you'll probably reach the scientist just fine with time to spare.