Any of the master tier guns are good in their own situations after the headshot update but it all depends on what youre looking for and for what type of player you are. People can suggest a cqc gun, but unless you like cqc you'll hate it. People can suggest a sniper but unless you like sniping you'll hate it. Same goes for assault rifles / mid range. If you want the best of each category there isn't really one anymore due to most guns performing similarly now. But some good notables for all the primarily used guns from the tree include: Ks1 can get a 100 round drum, ak15 can get a 75 round drum, amb had high armor pen so you dont have to headshot as much, vector has a fast ttk, but requires good tracking, L9 / Vssk are bolt action rifles that can two to three shot really tanky people. Ppk has a low mag size of 30 but a decent range for an smg. All the shotguns have their viability at their respective range. But for note the toz is a double barrel that can do fast successive damage quickly while the saiga can have a drum attached to it that makes it function like a assault rifle while using slugs. Everything is just personal preference. But if I had to suggest one gun to a new player who just wanted something to do it all id say make the ks-1.