CosmicNations

Just get the 16GB at the start and you will never really have to deal with it again.
PSU 
http://pcpartpicker.com/product/g63RsY/evga-power-supply-120g10650xr
I like EVGA as a company and I do believe their higher end ones are of good quality. Corsair are also good and so are SeaSonic.

Did you buy that already?
 
If not:
 
- Replace the GPU model. Asus Strix cards are pretty much Garbage over the board. On the 1080 it was Garbage, on the 1070, and also RX 480. It uses cheap "Direct Touch" on the chip DIE, but from those 5 Heatpipes, only 2,5 have direct contafct with it.
Like this: 
And you can see, even the middle Fan is almost useless, since there's so much free space. A very very poor cooling design from asus here.
I suggest, Palit/Zotac/EVGA models are cheaper, and should definitely be better. The Amount of Fans has btw Nothing to do with Cooling performance Don't fall for it.
 
 
- Ram: Why only 1? Go for 2x 8gb, you want the Dual Channel. And depending on the different Prices, you might wanna go for 2666, 2800 or even 3000 Mhz. It can make quite a difference on Min-fps (especially on CPU-intense games), even more if you compare 2800+ Dual Channel with 2400 single Channel.

I love tactical games I'll get my self an epic 5 man team and smash it out on Rainbow 6
That is if I get it

You continue to amaze me...

so aggressive!! i like it. lol 

i see true true

i see true true