Night familiarization training. It's applicable to both Tactics and Survival.
Half of your entire life it will be dark outside. Teach folks to get comfortable in the dark. Most aren't.
Just the simple ability to walk through the dark without a light...or be quiet and still while in the dark. Basic concepts like the time it takes to generate human night vision (visual purple) and recover it after it gets wiped out by exposure to visible light.
Without using lights, take them out for a meandering short walk (100-200 yards) into the dark woods, then halt, and have them quietly sit down in the blackness. Tell them to get comfortable and then to sit absolutely still for 20 minutes. No shifting. No coughing. No scratching. No talking. No rustling of gear. Just sit motionless like an owl. Wait till everyone is settled in place and quiet.
At that point, tell them to: "Listen to the sounds of the night".
After 1 or 2 minutes, tell them to "Smell the air".
After a 1 or 2 more minutes, tell them: "Use your natural night vision to see what's around you".
After a few more minutes, tell them to cup their open hands behind their earlobes (like a big radar dish) and better capture faint sounds coming from different directions. Tell them to close their eyes and just listen.
You should be the only person saying a word. And you should keep your spoken patter short and sweet. They are there to listen to what the environment can tell them. The less you talk, the better.
At a previously agreed upon time (about 8-10 minutes in to the listening halt) you have a previously hidden assistant/s periodically make certain noises or conduct actions at a distance (50, 100, or even 200 yards away). Across a period of about 10 minutes. Stepping on dried twigs or branches. Shuffling through noisy leaves. Clicking on a BIC lighter. Cycling the action of a firearm. Coughing. Shining a flashlight. Talking loudly/softly. Chopping or digging with a hatchet or shovel. Opening & shutting a vehicle door or engine hood. Turning on a vehicle radio. Turning on a vehicle engine. Your students should zero in on these noises. No more than one distinct event at a time... and separated by a few minutes. Just 4 or 5 things. Then have them stop.
Next (still talking through it), have your students listen for nearby ambient noises. Wind in the trees. Nearby (or distant) highway traffic. Aircraft flying overhead. Night animal sounds. Running water from a stream. Noises from another camp or habitat. Distant thunder or lightning. Whatever you've got that particular night.
Just things for them to catch if they are paying attention. About 20-25 total minutes into this exercise, have everyone stand up and relax, then debrief them. "What did you hear, see, smell, or feel?". "What kind of critter do you think that was?". "Did anyone hear that big tree branch fall?". "Did you see the flashlight?". "Did you hear the stream... or smell the distant skunk?". "Which way was the wind blowing?". "Did you hear the pump shotgun cycled?" It's an eye opener, because many folks have never once taken the time in their lives to just stop, relax, and listen while out in the pitch black.
The process will make them much more comfortable about being out in both the wild and the dark.
After doing that, just have everyone walk single file through the dark for a little while (10 minutes or so). Get used to moving (slowly) in the dark (without any use of lights). Back to the campfire after a just an hour or so of total training.
Here's some relevant previous posts (mine) that you may find useful for teaching very basic night training concepts...
http://www.survivalistboards.com/showpost.php?p=6463563&postcount=21
http://www.survivalistboards.com/showpost.php?p=6456061&postcount=7
Once upon a time, in a faraway university, I was a Freshman ROTC Cadet, doing weekend FTX adventures with a platoon sized formation of Cadet "Rangers". Folks are there to learn, but also to have a good time and some fun. Don't be an
Animal House style "Cadet Doug Niedermeyer". Teach something useful, push them a bit (by making them work), but keep your class to the point and not too long. Folks get bored when half-assed training extends on and on and on... to no good purpose.
For instance, you should be able to cover most of the night training walk and the points I mention in the linked threads (if you choose to cover those topics) in about 1-1.5 hours. No more. After that, let everyone enjoy the camp out, unless you have some kind of night tactical Cowboys & Indians planned.
Let me also suggest that you prepare and rehearse your class days ahead of time. Practice delivering it with somebody else (your Active Duty Advisor or another Cadet Instructor) before you do this in front of a main body of cadets. If you appear to not know what you are talking about or seem disorganized, a bunch of college aged students are going to quickly tune you out... especially if the event is co-ed. They'll have better things to do. Trust me.
If you have an Active Duty Advisor assigned, ask that NCO for help and advice with your presentation. Or one of your Senior class members... or your program's assigned Military Science Department Officers. They'll know what you need.
Like Rock6 mentioned... keep it fun.
Hope this helps...