Okay, I need to understand the Force Field power, once and for all. Let me summarize what I think I know about it from reading these rules and some of the posts here...and you can tell me where I have it wrong.
1) It works like body armor in how it blocks damage, except that it suffers no reduction in effect for 'energy' damage or other exotic types of damage.
2) It can be created as a sort of 'suit' around oneself, or expanded to cover an area and shield multiple subjects. If limited to personal size, it does not incur the penalty to Agility that the Body Armor power does.
3) It requires constant concentration to maintain. This concentration makes it impossible to do anything else during one's turn other than move.
4) If the force field is breached, the creating hero must make a stat roll to avoid being temporarily incapacitated. This occurs in addition to any effects of the damage.
5) There isn't a hard limit on how long a force field can be maintained if it isn't destroyed, however it limits any kind of interaction through it so even normal daily functions like opening doors, picking up items, eating, etc are impeded while it's active.
One question I haven't noticed being asked yet is if Force Fields and Body Armor are cumulative. That is, if I have 20 points of Body Armor and 20 points of Force Field, and I'm hit by a 50 point attack (and succeed my stat roll so losing the field doesn't knock me for a loop), am I taking 10 damage or 30 damage?