Sephlock, on 14 February 2014 - 02:09 AM, said:
Didn't they something about un-movable heatsinks, endo steel, and ferro slots, as well as certain weapons being unremovable?
Yes to all, with clarification.
You won't be able to change armor type, structure type, or heat sink type. If your Mech has standard armor, standard structure, and double heat sinks, that's what you're stuck with. You cannot add endo to that Mech.
Some number of heat sinks (whether single or double) will be fixed. You won't be able to remove (or move) those heat sinks, but you should be able to add more. Omni pods can hold just about anything including heat sinks if you want to use the tonnage that way. For example, the Daishi carries 2 fixed heat sinks in its engine plus two additional fixed heat sinks, one in each side torso. You can't move or remove any of those heat sinks, but you should be able to add more to the side torsos if you want to.
Certain weapons will also be fixed, such as the head-mounted Flamer on the Puma. That flamer is an inherent part of the chassis so you can't change it or remove it. I have a vague recollection of some Omnimech having a pair of MG in the CT that are fixed, but can't remember which one that might be off the top of my head.