I can't quite remember, but I think, I think you can have either Polar Bear or Eskimo1, but not both. The special way you can change papa bear you can do for only one call sign per side per mission. Or something.
So you're probably stuck. It's one of these things that really annoy the mission designer but the mission player doesn't really notice, so I wouldn't get too bogged down in it.
The secret with learning camera scripting is to skip through snYpir's tute, then skip through messiah's so that you have an overview of what you are trying to do. If you want a very simple camera script to copy nick one from the Tutorial Mission in the Editors Depot. Stick at it, you'll get there soon enough.