Originally Posted by
Snails
Speculation: The IFCC have a plan, but it requires a Gate not be seized by Xykon. Thus they considered Roy destroying Girard's Gate a necessary tactical choice.
The most plausible version of that plan is that is that IFCC thinks they can seize a Gate themselves. Of course, that speculation has the weakness that we do not know of any substantial resources on hand to accomplish such.
Clearly they think they can pay back Tiamat in some fashion. Of course, maybe that was just a ruse -- the payment of the death of upteen Good dragons is a side effect of world destruction, and Tiamat will be disappointed by a payment that involves upteen more Evil dragons biting the dust, too.
Occam's Razor suggests that the IFCC is just contractors working for Hel. While a simple and adequate explanation, I find it very unsatisfying.