Rob, Yamamori typically carries a full grenade load with his Mauser unless that's a problem. Assuming that's ok he'd be carrying 1 frag, 1 flashbang for the grenades. Do you need a reminder on Yamamori's standard kit?
Yes, please.
Remember that you and Marshal don't have to do any rolls to get your standard loadouts (about 2 hand and 6 rifle grenades) as it is. The only time you'd have to roll would be to get more of them to carry; if you wanted 12 HE rifle grenades, for example.
The two of you are also considered to have "infantry weapons", rather than the sidearms that people like Callahan carry. I know you have the Mauser system, and he has his M4gery.
Worn:
Coolant suit with combat neurohelmet
standard side arm with silencer
knife (standard not vibro)
Combat boots (assuming this is standard for all)
1 flashbang, 1 frag grenade
May be worn standard (depends on if or how much of a penalty to PSR):
IR / ECM / Camo Sneak Suit*
Yamamori's standard kit that he keeps with him in his mech includes:
Mauser 960 with full gear (flash suppressor, grenade launcher, vibroblade, medipack, etc.)
6 mini grenades - 4 high explosive, 2 stun
Jump pack (standard, not emergency - attached to his command couch / ejection system)
Pack (attached to top of jump pack containing)
A few power pack spares for the mauser
An extra couple clips or power packs for the side arm depending on what's standard issue
Ablative flack jacket and pants
6 more HE grenades, 4 smoke, 2 stun
Extra rations / water / canteen and water purification
tranq pistol with silencer
Spare medkit
*The sneak suit in at least one description I found indicated that it needs to be worn as the outermost layer. Likewise the coolant suit is described as skin tight. Assuming those are accurate descriptions then I would expect it's easy to wear the sneak suit over the coolant suit. Let me know how much of a penalty there is for doing so.
If anything seems unreasonable, please let me know.
With a sweep of his...
Hat