Why, the MoC kit is one of the best out there. Game stats don't lie.
...
I assume this is missing a sarcasm tag? :) In BT, its a single point Divisor, which is the standard "Don't suck" armor.
In the RPG...well, parts of it are good. Parts are bad. Sometimes at the same time.
The helmet is nice and heavy and protective (from most forms of attacks), but also gives one of the worst perception modifiers in the RPG. The Marian helmet provides the same protection, adds in Nightvision on top of the Rangefinders and military comm that the Magistracy kit has, but only costs 50 c-bills more, and only has a -1 to perception.
The Gloves and Boots are pretty standard. Nothing special or awful about them. Not the greatest, but standard.
The main armor bit (which coincidentally is used as the "generic" armor when not using hit locations in the RPG) is both good and bad. Good in that it provides a 5 points of ballistic armor. Not the best, but its going to provide protection on par with what everyone else has (some armor kits go up to 6). Its rating against explosions is similarly average. Its Melee and Energy armor values however are dismal. It won't even absorb any of the damage from a simple knife. (Okay, I'll admit that the way the RPG works, that alot of the "Better" armors out there won't do much against laser weapons, but the armor values are still low on the Magistracy armor).
Not only is the main armor worthless against anything other than ballistic or explosive damage, but it also only covers the torso. Arms and Legs are uncovered completely.
So we've got an infantry kit that hasn't really changed since the end of the Reunification War, IIRC. It probably worked well during the Succession Wars when combat was limited in scale and against mostly lowtech pirates who used ballistic weaponry, but times have changed somewhat.
As an aside, yes I know, the way the rules work, the Magistracy's armor is just as effective against certain weapons as more advanced armors with their higher ratings are, since it doesn't matter how much a weapon's AP beats the armor value, it just has to match or beat it.