As been said theirs little recent info (or in general for that matter) on what infantry commonly run around with.
Here's what you can use that's available in the RPG equipment section
Primary Weapon
Optional Secondary weapon (pistol), largely use with Weapon Gunners, Squad & Platoon NCOs, and most officers,
Optional Bayonet
1+ Frag Grenades
Optional Smoke Grenades (more likely to be found on say squad leaders or other select troopers)
Primary ammo Mags, at lest 2 spare (mag in weapon and 2 spare that is)
Secondary Weapon Mags, 2-3 spare mags
A Load baring pack (.1kg)
Combat uniform, with at lest 1 spare (though I doubt that a full body suit is .5kg)
Standard issued House body armor, if you do not have access to such (I.e. merc or militia) I would tailor to fit your needs but for general combat...
An ablative/flak Jacket (or if weight is not as much of an issue the Ballistic plate vest)
ablative/flak Helmet or the Advanced Combat Helmet (ACH) if cost is not an issue
Heavy Combat Gloves
and Combat boots
If your worried about Gas, a Respirator or Filter mask is what you need
House armor kits and the ACH seem to have polarized goggles so if your not using any of thoughs you might pick up some polarized goggles to help protect from flash weapons (I.e. flash bang grenades)
Most house armor kits and the ACH have a built in radio, if you don't have one a Military communicator is needed, though Squad & Platoon leaders should probably upgrade to a Field communicator (Company and higher a "long rang com kit" -I.e. Man pack)
An optional squad level Video camera
Compads for most soldiers, Noteputers and or Telscan for Squad leaders and higher levels
Most House kits have some sort of night vision optic, if they don't, well a Nightvision goggle would be nice to have, though Rangfinder binoculars also work, alternatively an IR scanner...
Well with all the fancy gear your gonna need battery's, I'd recommend at lest 2 per device (micro or standard power packs), with a Solar recharger, though a Heavy Duty recharger could be useful (probably a good idea to mix the two in a squad).
A Basic field kit (I.e. basic camping gear)
Squad leaders should have a electronic compass (or a regular one if your cheap)
And field rations (at lest a days worth)
Theirs more could be useful, but their not in the RPG...
...I.e. Entrenching spade & rope