Screen Recording Software?

I need a free screen recording software that can handle recording call of duty modern warfare 3.
I have tried the following

OBS (I had to have the OBS window clicked on to work)(Setting suggestion?)
Camtasia Trial (Cost 325$ USD and records 1 snapshot a second, so really, really, bad quality)
HyperCam2 (Captured a snapshot then stopped)
Bandicam Trial (works for minecraft ok, but has watermark, and cod mw3 is really big game, so nope.)
Action (Can't remember what happened)
SmartPixel (My pc is too low-end)
ShadowPlay (PC couldn't even download it)

And alot more i don't remember…

My PC Info:

HP 15
Intel Celeron N3050 Procceser
13.6 Diagonal HD display
4GB system memory
500GB hard drive
Windows 10

Any ideas would be greatly appreciated!

Well, i double-checked bandicam, and it works great! XD i just need to purchase it… Id have money… So q/a still needed…

You can try Bandicam. The unregistered version will give you 10 minutes - that s as good as it gets for free.