Ummm... Loadouts are determined by mission... which is then matched up to a Units supply. If the mission requires 6 or 4 or 2 65s, they are going to carry 2 or 4 or 6 65s.. Just because what has been shown in real life in the past does not mean its not realistic to use 6 65s on an 88... the BEST way to see whats right or wrong is to read a a JP or FM that says, this is what is used... which as far as I know, I have not seen one.
In the past.. we also were not fighting tank divisions with F16s... as we do in DCS.
But, just so we are clear, I wont be using 6... but I can't support the argument of, "its not realistic to use because of realism" because that decision is made by the commander. While that decision is unpopular or even used, its not completely unrealistic either.