It is in this context that I think China's Type 056s are under-armed, though they may be considered armed-just-right for deterrence to neither be threats nor be pushovers for today's needs.
Though many of the regional navies like Vietnam are already undergoing a generational upgrade or can reasonably be expected to do so in the near future and the Type 056 will be rendered semi-obsolete very quickly.
Underarmed? Obsolete?
Say what?
The Type 056 is a modern 1,400 ton corvette with a 76mm DP main gun, two 30mm auto cannons, four long range, superb surface to surface missiles, an eight cell, very decent anti-aircraft missile system, defensive torpedo tubes, and a helo deck for landing and refueling ASW helos. It's also got a very good sensor suite.
The Type 056 is a very capable multi-role corvette for its tonnage, and it is modern and not about to be rendered obsolete by anything Vietnam, the Philippines, Malaysia, or other local nations are building now, or the foreseeable future. That's just the truth.
And the Chinese have already launched 23 of them. Hear that? Twenty three already launched with 16 in commission and more building. Probably a lot more.
The Vietnamese have the new Sigma class that correspond, and those are indeed good vessels, but they are only going to have four of them.
The Gephardts are very good frigates too, but again, very few in number, while the Chinese have built 22 Type 054As and will end up with a couple of dozen modern DDGs as well.
No, the Type 056s corvettes are not under armed at all, and they are not at all about to be obsolete in any near term future.
Now, as I said earlier, Vietnam is building up a credible fleet of surface combatants and SSKs, and they will be effective in either deterring local armed conflict or responding to it. But those will serve well for relatively small local disagreements.
They are no comparison to the PLAN overall...and the PLAN itself is building a MUCH larger, more capable all around fleet ranging from fast missile boats, to corvettes, to guided- missile frigates, to guided-missile destroyers, and when the Type 055 comes out, to cruiser sized vessels. Not to mention there much larger SSK fleet and their carrier, amphibious, and nuclear submarine capabilities.
Also, Pan, lets not even go to a war time China vs. Vietnam scenario or discussion. The rules forbid it. Going there it will only lead to arguments, high emotion, and then someone like me having to swing a big moderator stick.