Each step in the 'Ible will be on each different theme. So I will put in a picture, and get down to business.
Disclaimer: Please always wear eye protection as airsoft can be dangerous. Please wear the appropriate clothing, don't play on land that you are not allowed on, check your local laws to see if playing in certain areas in alright etc. FOLLOW THE RULES
I do not claim ownership of all these pictures
Step 1: Equipment and different Roles.
Gear for Roles (May vary depending on playing location)
Heavy Infantry: High RPM AEG Rifle(SAW), Secondary AEG, Extra BB's, basically quite a bit of extra equipment which might include grenades, smoke bombs, and others.
Sniper: High FPS Sniper rifle (Depending on field of CQB. I prefer Bolt Action Spring guns, they are usually quieter and reliable, plus who doesn't love bolt action?!) either a small AEG (ex: Mac 11) or semi-full auto pistol. May want a spotter. Maybe a sniper gillie suit if you have the money.
Assault (Your basic role): AEG Rifle(Basically anything) (Yet again, high FPS[350-up] for bigger fields, lower FPS[Under 300]), backup pistol, maybe extra ammo.
Scout: Scouts need to be able to blend in with their surroundings and move quickly and silently. They will want a mid-sized AEG(M4, P90, alot of options), and a backup pistol. May want a gillie jacket to quickly blend in.
Special Ops: Your backbone, need to be able to take on any role. For their basic role they will want a nice AEG(Yet again, M4!) and a good secondary. Depending on different missions they need to do, they will need weapons to fit.
Medic: Real medic and just the role, should have an emergency kit and 'Dead Rags'. Pretty much just needs an automatic rifle to be able to defend themselves as they try and get to the wounded. May want and armband for people to identify.