1. For the pair of mechwarriors each of whom have to spend 10XP to get this set up, is it pay once and either can be pilot or gunner with the other taking the off-role or would that be 20XP each? I would think 10 as it only works with a particular partner, and the whole process needs to be started over with anyone else making it lost XP if one of the mechwarriors retires or dies.
Yes, it's 10 each, and either can be the pilot or the gunner.
2. When switching between roles (after spending 10 or 20 XP each), is it an end phase declaration?
Should be, yes.
3. The PC has Fast Learner, is it still 10 or does that make it 8?
8 XP, that's a good point.
-If the Pilot or Gunner is incapacitated, use the G/P skills of the non-incapacitated team member. All of the above bonuses are lost until that team member is no longer incapacitated.
That is functionally correct. A Command Console does have full controls in both seats, so if one member is incapacitated, the other pilots the Mech exactly as though they were the sole pilot.
1. personnel may be released at any time and the appropriate payouts in cash/equipment made.
2. lances may effectively temporarily exceed their leadership derived personnel cap such as by picking someone up in the marketplace or attempting to recruit a prisoner, provided that if successful they immediately release enough personnel to be within their cap.
A provisional Yes to the first, and unqualified Yes to the second. Lance Leaders, specifically, have a limitation on their retirement/release from service. See "Retirement" in the HM, WT rules.
I am not sure if we have ever decided to allow ECCM.
We are not using ECCM or ghost targets at this time.
Next more important questions are with the potential changes to ecm affecting even friendly units. If any ecm affects friendly units I would assume that would not only hit the c3 but Artemis systems as well. May end up as more of an issue than solving one if they go that route.
Unless and until an errata is released stating that ECM will affect friendly units, we will continue to operate things as stated in the TW/HM,WT rules. I'll worry about changes when/if they happen.
So is this contest on a per hex basis, or does the bloodhound have to overlap the actual unit to cancel out ECM effects?
I'm unsure what you're asking here. I mean, yes, I understand the electronic warfare hierarchy bit, that's fine. But I'm unsure of the practical effect of your question. The Bloodhound can "see" ANY unit unprotected by an Angel ECM out to a range of 8 hexes. So if Unit A has a BAP, and Unit Z has a Guardian ECM is 6 hexes away from Unit A. Unit A can "see" everything within 8 hexes of it as though the ECM Suite wasn't there, so Unit Z would not benefit from its Guardian ECM. However, if Unit Z was ALSO within 4 hexes of Unit B (Unit A's ally), which is part of a C3 net, Unit Z would still cut unit B off from the C3 net because it's inside Unit Z's ECM bubble. The BAP doesn't shut down the effect of the ECM; it only allows the unit mounting the probe to "see" through the bubble as though the bubble wasn't there.
Does that sufficiently answer your question? I suspect this is a question which needs a quick mapsheet layout to fully grok.