Nico's version of a slightly upgraded weapons capability was to change the capacitors on the Disintegrators, allowing them thirty percent faster firing rates at a slightly lower output and to put a second Mass Driver at the shoulders to go with the one at the wingtips.
The increased firing speed was only an advantage to the most elite of Pilots in the Corvette Class ranks since most couldn't target fast enough to outdo the weapons that it already had, but you could fire them in pairs, increasing the damage done, which would be an advantage of its own against the hardest of targets, which would normally be the ones that the Command Mecha would have to deal with.