CSGO or Face it

Personally prefer the deagle since it can be pretty lethal once you learn how to reset the recoil and doesn't need a wind-up like the R8, but have seen some great plays with the revolver too so it usually comes down to whatever you are more comfortable with.
It is better to choose Faceit, at the moment it has become impossible to play on NonPrime, it will certainly be better in prime games, but Faceit has a variety of bonuses.