On Sacking...

[Kobal2fr]

Well can it be modded? forget the game mechanics for a minute, its logical to me that a christian army is more apt to kill more non christians when sacking. Granted not in all cases, but I think you know what i mean, so back to game mechanics, if I sack alexandria and its a muslim held city and a muslim region I would most likely be killing more of the inhabitants.

The mechanism of population as the exclusive trigger to sacking and income derived is okay, but if there is a possible modification that can take into account religion then it should be considered.

That's a good point, but you could also contend that the decision to sack/genocide Alexandria instead of occupying it represents this bias against people of other religions. Many people use the "always occupy non x-commed catholics" house rule for this very reason (or its opposite, "always butcher the infidel")
In fact, if you haven't sent priests to convert the Levant before your crusaders get there, you sometimes HAVE to genocide to keep a decent public order rating because of combined religious unrest and distance to capital factors (well, in LTC at least)

Heck, even a high dread general opposed to a high chivalry general should get more from sacking right? Cant we assume that the later would kill more?

Already in there. Check the trait triggers I posted further up : Despoiler gives bonus to sacking money, as does Genocide (only Genocide gives dread on top of the bonus to sacking). In fact, you can get both traits, for a max +60% loot. (70% with the Mercenary Captain ancillary on top, if you really want to Get$$$Quick ).
I don't think they kill more, though, or that a general's Dread/Chiv affects the population killed. That's one more test to run I guess. There's always more tests