Theres no real standard loadout of what must be carried. Well.. on course there is but in the unit and overseas you carry the mission essential kit you've been issued and anything extra you decide. Also, depending on your role within the section/platoon/coy your gear will be different, ie if you are the Section Commander, Signaller, C9 Gunner, M203, etc Also, the length you will be out, etc
For an example here's what I carried with me on patrol in Afghanistan
(the water bottle filled with gatorade is the only thing missing in the chest rig picture and sometimes I tossed it in granola bars or whatever).
And in the left arm sleeve pocket on my combats I carried a reports and returns book, notepad and markers.
In my backpack I had the radio, an extra smoke, an some extra medical stuff and a 3L camelbak
Why do you really need this anyway? You won't have access to some of this stuff and theres really no need to carry some of it for airsoft, etc. Just use what works for you and only take what you need for a game. No point in carrying(and buying) around extra stuff you aren't gonna use.