It can be a lot of fun and give you some hands on time with a lot different weapons. The class you use is up to you, but the idea is to have a build with a lot of perks and equipment and not tying up more than a point or two into your weapon. Be warned though, that the first minute and a half of a game can be a little frustrating until a few kills happen and weapons start dropping on the ground. After that it;s a lot of fun. A lot of players do this with just the combat knife, but I prefer to bring a starting gun with me just because there are some battles the knife cannot win.
I tend to use a pistol with this class because they work very well without any attachments unlike most of the primary weapons. Also because of their fast swap time, a pistol is nice to have as a fall back weapon if you scavenge a primary that doesn't perform particularly well in close combat. If you don't care for pistols, any SMG or shotgun can fill the same role as well. Also, the RPG can be a lot of fun too.
This play style adds a lot of variety to the game especially if you only play with a handfull of guns normally or the game is getting stale. It puts several guns in your hands you might not otherwise play with and can lead to some itereseting discoveries. For example, my first few run throughs on the Wii U version I hated the SMR with a passion. Then I found a match where I kept picking up off the ground with the hybrid optic and stock. Now it's one of my favorite weapons. Sometimes the right attachment combination can make turn a weapon you view as worthless into a powerful option. It also gives you some insight to what your opponents are doing. Most players stick wtih one or two classes per game and often try to level up the same gun. If you learn what weapons they are using and their attachments, it can give you an edge in a long running series against an opposing team.