if it helps this is what i carry on ex/ops /milsim airsoft
Bergan ( berghaus vulcan with three PLCE side pockets fitted , one each side and one on the front. )
left side pocket : ( all sealed in ziploc bags then put inside an Ortlieb dry bag )
Spare t shirt /base layer ( lifa etc )
Spare combat trs and pertex windshirt ( for sleeping when normal clothing is wet - sleep in the dry , work in the wet )
spare socks
Spare warm hat
Centre side pocket :
Small non stick cook pot, ( for fresh scoff , range stew etc )
the days rations
wash and boot kit
jetboil/Hexi cooker ( jetboil forairsoft, uk short ex's - Hexi for long ex's and ops )
Right side pocket : ( this side pocket has the yoke fitted but folded underneath )
Any additional rations
Spare water
Room for ops kit
Main bergen compartment :
Sleeping bag already placed inside goretex bivvy bag ( compression sacks are a waste of time and space ) then put inside an ortlieb dry bag bergan liner.
Patrol Pack : this site either vertically inside the main compartment of my bergan or if the bergan has additional ops kit inside will sit on top under the lid.
Waterproofs,
Warm kit ( softie jacket )
Basha
camelbak
emergency rations ( one boil in bag, 2 hot choc sachets )
spare batteries,lightsticks, paracord.
spare socks x1
wooly hat n gloves. ( if i'm not wearing them )
headtorch
Ops kit ( ie nightvision extra ammo , flares, 51m mortar rounds , gympy link
Fighting order :
Ammo , water,trauma kit
This is for green stuff in the UK , In the Afghan summer the kit was stripped down considerably - obviously not much need for waterproofs,basha, warm kit etc there and boil in the bag rats cook in the sun

) hope it helps.