Two things you have mentioned.I will mention the rest.
Comm sets
Nvgs
Optics
Clothing and boots
First aid
First AID!!! A KEY frigging piece of kit. today out men are equipped with the bare minimum. Not even quickclot.
I would like to add. Load Bearing vests for our troops. QRT/Urban troops tend to wear a different kind of vest from LRRP soldiers (only refering to SOF soldiers here). You see our SF soldiers (including NSG!) wearing these bulky vests that have large roomy magazine pouches with a flap over them. in an Urban CT senario with quick reaction how fast is that magazine change going to be? Go back a couple of pages and look at the vest of most of the western CT units. The magazine pouches are made for the exact size of the magazine and grip them for easy access and fast change.
Old example - story about the current CO of INS Karna Marcos Base. in the 00s he was on a COIN op in Kashmir. Soldiers were caught in open ground and got ambushed. He Jumped over the wall to protect the soldiers and took a full blast of an AK discharge right to the chest. 7 bullets. One of the bullets hit his grenade and dislocated the pin. Ironically before deployment he ditched is standard MARCOS vest for a vest that he was given as a gift from a Foreign operator on a cross training exercise. The Grenade was in one of these super tight compartments and hence didnt explode. If it was his MARCOS vest he would be dead.
Secondly - Every soldier seems to have his vest based on his own preference. if a soldier goes down in the dark and somebody has to administer first aid on him - imagine the time he is going to waste first finding the kit from all the pockets and them using them. SOP should be such that I can touch somebody elses vest blind and get what i want because i know what is where.
One of the russian pics showed Strobe Lights. As NVGs and C/UAV's and CAS (attach helo's) start getting inducted into our forces our soldiers need to get used to operating with Strobe Lights. Night time IFF is going to be critical.
Gun Slings - The Brits/Americans/Israelis have spent a considerable amount of time experimenting and working up various gun slings to improve efficiency decade after decade. You have 2 point slings, 3 point slings, etc etc.
The smallest DETAIL can be the difference between life and death.
Added later another one- Suppressed Weapons. the USMC Facebook page had a great article on issuing Suppressed weapons to everyone. Sustained use demonstrated that there was a slight increase accuracy while retaining stopping par. Added benefit was that soldiers no longer suffered from shattered ear drums