Analyzing your teamates can be difficult if you have not fought wiht them very oftern before.  Yet, you must know something about them and their style unless you just invited them because you thought they had potential.  If you haven't seen them  fight I really suggest to engage in combat first thing.  I already presume that they know how to use a Supersoaker, I mean who doesn't now days.  Give them pointers in your one on one battle, this will help to wet their feet, if not literally.  

Analyzation
One thing to note is the level of their play.  This means their experience, whether really green, some experience, a warrior, or a veteran.  Also, quality is imoportant.  You can see their style of play, how much natural skill they have to work with.  These will be your key factors to deal with in training.  Of course their weaponry is of imoportance to, what they have trained with if they have trained, their personal preferences, their own weapons, etc.  I do not like lending out weapons, but sometimes you have to; especially with a new team.  Not always will someone who is short and fast like a Max D 5000, every person has their own style.  I cannot over express the IMPORTANCE of the eliminations (1 hit kills) trainings and skirmishes.  Get to know what kind of weapons they are familiar with, what they love, and how they play.

Specification
Finding what they do best is easier IN BATTLE then just through training.  Seeing how they react under fire is the best way to seeing where they fit in.  Check out the battle training section.
Grunt (Fighter): These guys like getting in the thick of things, literally.  Being a jack of all trades, or just a reguler fits this profile.
Artilleryman (Gunner): These guys love to be the heavy hitters, raining down liquid death upon the enemy.  The enjoyment of pummeling an enemy with CPS fire delights them.  In general people who love big weapons and hitting hard.
Sniper: Silent, mobile, assasin.. these describe the sniper.  If you have a loner in your group, with lots of stealth then this is their place.
Scout: Scouts are the eyes and ears of the army, fast runners, or just anyone who you note runs ahead of everyone else to scout out the area and has a considerable amount of stealth makes a good scout.

Target practice
 

Physical Training
Part I: Explanation on physical training, and how to set up your own "Obstacel Course"
Physical training is a good thing in order to become ready for war action, but remember this... what you do will not necisarily increase their strength, stamina, speed, or agility.  While some sites stress physical training for supersoaker warfare I do not.  What you do will not amount to enough to increase those, however, it will teach them to be lighter on their feet, and to meet oncoming obstacles with ease.  Remember that the time you have as a team is best for team training, you dont need to be macho drill sergeant, if they choose to buff up they can go to the gym, they dont need to do push ups with CPS 3200s, our former leader made us do many things like that before when I was 2nd in Command, it can spark rebellion.  What you need, is not the pull up bars, nor the crunch and push ups areas, nor the weights.  You need areas that teach your soldiers how to be light on their feat, and quick in the mind.  Now, what does this have to do with physical training?  Well, that is all I emphasize on my team even though we do push ups and what not every now and then.  An "obstacle course" of tires and fences works wonders.  While your team may not be building those biceps (they can do that at home) they are learning how to think fast and watch their feet.  Thus your team will not have to worry about running through course terain, and having to slow down.  While the enemy may have the muscle to do it, they will not have the mental edge like yours.

Communication
Part I: Teaching the Hand Signals
Basically go over the signals with your comrades, check out the Communication section first.

Part II: Stealth Mock Battle
Even though I am the commander of Red Scorpion, and have been since 2000, I was educated by a fellow warrior in the game of stealth and communication.  I have taught many people this now, and this is a really good thing.  Take 1 or 2 newbies with you and go through a mock battle.  Since they now know the Communication  signs you can go without talking.  Have a specific starting place, and a specific destination.  Remember to have check points along the way, pretend you sense ambushes, and use signals for cover me, fire, and such.  This doesn't sound deep, and its not really, but it works wonders in your teamates style of play, stealth, and communication.  I learned alot by being educated by my friend Jacob (Gunny) in this.

Battle Training
Part I: Learning how to assault a position under fire...
Have A few bunkers set up, preferably on a hill, have various obstacles, trenches, fences, almost anything all around, in fact, water mines are good.  Have a few snipers and such hidden around bends.  They don't have to shoot the trainees directly, but have them under fire, and dont tell the trainees you told them to miss.  Have your experienced warriors firing at the newbies.  With waterballoons fire long range down the hill at them.  You can either lead them through the mine fields and battle area on the assault or test each of their leadership skills as they scramble to the fort.  This tests them out, will show you many things, and how each one of them reacts, leads, fights, and their style.   Once they get to the top instruct them to go around the sides of the bunkers or lob some balloons over top before hand.

Part II: Specific missions training w/ kill the president game
In this game divide the team up into 2 groups, like you would in a reguler kill the president game.  Spread the newbies out on each side so they can learn from the experienced.  Each newbie needs to be given a specific mission.  Wether its the personal escort of the presisent (a non combatant, or even you), or on the other team to be a scout and find the president.  Of course give them a mission according to how they fight, as seen when you identified their skills.  Have a scout for each team, testing and probing where the enemy may lurk, and I do suggest walkie talkies.  I'd suggest a sniper to take out the president, and one to watch for the other sniper (on the escorting team).  Also, an assault cluster for each.  With each newbie having a specific task, this gets them ready for indipendent missions.  Always play 1 hit kills.

Part III: Complete training battle w/ capture the flag
In this game you will test the overall skills developed so far, combining the practicing, and battling experiences.  You have to gaurd you team's flag while taking the enemy's.  Decide wether to test your teamatess knowledge and let them be the leaders, or whether you command.  Position strategic bunkers, and obstacles all over thebattle field before hand.  Let everyone have a specific mission, and go all out in an eliminations game for the flags.