The Phenom II x4 is decent in gaming. It's starting to show its age but its still alright. I would try to upgrade it to a FX-6300 though.
The motherboard is a good quality motherboard thats not really meant for overclocking.
For the RAM, find the cheapest 1.5v 1600mhz CAS 9 ram you can find.
The HDD is standard 1tb HDD
Case is pretty solid. 200R is one of the best for its price range. However, the 300R is on sale and the same price as the 200R after MIR. Good deal there.
The psu is decent quality. I wouldn't really recommend it a lot but its a nice budget psu.
I didn't really cut down on anything. All the parts listed are high quality except the decent cpu and psu. Psu should still be fine and the phenom ii is a place holder for a FX. The OP wanted to max out BF4 so I needed to put in a decently strong gpu for that.