Star Trek-type away mission? Why is it the bridge crew of all people who beam down to explore the planet out of the hundreds of people onboard a typical exploration cruiser? The bridge crew should be *staying* on the bridge in case something happens.
Away missions often turn into race-against-time survival situations. I refuse to risk my bridge crew for that! If I have no idea what to expect then my standard away team is as follows:
1 Armored Personnel Carrier
This way my away team has the best odds of survival without excessive deployment. It is more then a bit militant, but if away teams didn't get attacked 100% of the time then I won't have to use dedicated soldiers and armored vehicles to protect them