No its a dual core so PR would be OK, but afaik you need a 4core for modern games these days with all the background stuff running plus gaming, graphics card is OK but you need a 4 core running @ least like a 6500 to get decent FPS.
A friend has an old i5 3470 at 3.4/3.8 plus a GTX660Ti and squad is running very well with him.
GeForce GTX 950 vs 660 Ti
What screen resolution you at?
I need to upgrade the CPU
6400 is 2.7/3.3boost +6900
6500 is 3.2/3.6 for 7900 yen so 20% more speed for 1000
6600 is 3.3/3.9 for 9900 yen
I would certainly upgrade to the 6500 not so sure about the 6600 but it is 10% faster on boost and I am under the impression that Squad like PR is more CPU dependant than GPU.
SSD's are nice I know in arma they changed a lot, in PR I load always first or second with but don't know how they affect squad.
IMHO small case downsides is upgradability meaning maybe no space for a sound card, wifi card, USB 3.0 or a big full size GPU, and secondly heat/ventilation but it isn't that hot in Tokyo and the case looks OK to me.
No DVD? You OK without that?
Is that W10 retail or OEM?
I've taken the liberty of posting on Squad forums as I don't have confidence in myself - be ready for the nah gotta be a GTX980 or nothing responses....
http://forums.joinsquad.com/topic/7607- ... can-squad/