Veresk is a compact monster with penetration similar to SA58 Para that is preferably to be used by bursting than spraying.
The Kriss Super V does not have the penetration of the Veresk, but it is easier to handle and can be bursted a little more than a Veresk, altrought not a monster like the Veresk, it is still highly reliable and has the option to add a suppressor.
Both are good, but if:
Ease to handle = Kriss Super V
Power + Penetration = Veresk
TPG-1 is probably the sniper rifle that tags the less, due to it's high power and penetration, the only problem some player have expressed is the scope speed and movement speed.
HK417 is a consistent 2 shot sniper rifle and rarely one shot, easy to use, but not recommended in competitive environment.
DSR-1 is the fastest shooting sniper rifle if using quickswitch and great movement speed, has penetration and great move shot, the only problem that it could be inaccurate at range and may tag occasionally.
TPG-1 powerful but slow.
HK417 two shot reliable semi sniper.
DSR-1 Fast and powerfull, but innacurate at range and may tag.
My choice would be Veresk and TPG-1
I am not going to go into rifle... because i am bad at it and i need a scope to actually make it work decently.