Is it possible to use Bolt Action tactics in K47?

I’ll give a lame answer and say it depends which tactics you’re talking about, your mission objectives, and the composition of the enemy force. Of note, the factional benefits are in some cases different in K47 than in Bolt Action, so, for example, the US has air dominance in Bolt Action, but that trait is replaced by a couple of others in K47.

I don’t play Marines, but I have a US paratrooper force with all of the Rift-tech equipment that’s sold except for the Grizzly (which I couldn’t find in stores) and the Tesla Greyhound. Obviously, I don’t use them all all the time, and the bulk of my force in any engagement I’ve ever played has been vanilla Bolt Action units. All US forces have significant advantages in fire and maneuver (rifles and BAR do not take a -1 when Advancing, gyro-stabilized heavy weapons do not take a -1 when advancing) and they can take three machine gun teams (including a heavy) for each machine gun slot, plus they re-roll 1s on all team weapons (not just machine guns — bazookas and mortars too), so in general you are going to get the most advantage out of them by moving quickly and maneuvering to get into the best firing positions rather than, say, Germany or Japan who have either national characteristics or weaponry suited to sitting at the back end of the table or dug-in for ambushes.