I voted yes. Here's just my opinion on both options
Unlocks allowed: This is nice because it gives more variety. It also lets you be lethal on any army if you're good with the G3 or F2000. Some people are of the opinion that the unlocks are "overpowered" though, or "take less skill". I honestly think the G3 and F2000 are not uber-easy to use. It also gives you the option of using hand grenades instead of a GL if you go with the G3. Finally, it's more appealing to folks who enjoy using unlocks a lot. And default weapon diehards will be able to prove what they're made of.
Unlocks not allowed: Another fine option. It requires a bit more skill because you have to be proficient with 3 different guns (if we do have a map with the PLA, in which case I reccomend FuShe 16 or Songhua 16). This is fun in itself, in that we'll have "Best AK101 Whore" and whatnot. There is the fact remaining that this may not appeal to more unlock-loving players, and you can't have the option of hand grenades.
Both are fine, and I'm fine with whichever one. Unlocks would probably make it more varied, yet at the same time may make it a "G3" or "Flashbang" war =/