A few questions from a new player

[Loopy]

So I started my first playthrough on impossible. It was fairly hard (understatement of the month I'm sure). Thankfully, after seeing the huge leadership bonuses my mage would get, I had the good sense to immediately go for no loss battles early on (except for the few times my inquisitor only revived 1/2 dead troops, which made me bang my head on the wall). That really kept me afloat. Then I got engineers/guard droids/repair droids from Bolo and its almost been a cakewalk ever since. Which is part of my problem.

Is it actually possible to beat the harder difficulties with a balanced army (and not needing to run back and buy units every other battle)? Exploiting 90% physical resistance on the guard droids and teleporting them right into the enemy lines is getting old fast, and it looks like half the strategies for no-loss or minimum-loss games revolve around stuff like that or other equally boring to perform strategies. But as soon as I get outside the holy trinity of repair droid/guard droid/engineer I get absolutely demolished, no contest at all. I go from needing 1 or 2 rounds to revive lost units to 75% losses or a complete wipe. For reference, I've attached a screenshot of my current character. In addition to whats shown, I have a bit of focus on Prayer in the mind line and Anger in the Might line. I don't think my build is bad at all, but tell me if I'm missing anything obvious.

Can anyone tell me how to use KBScanner to locate a resurrect scroll? I can't seem to get it to work with any scrolls. I'm searched most of Verona/Montero/Tekron ingame and found none of them. Not having resurrect seems to be one of my main weaknesses, I can only rely on 1 use per battle resurrects that only bring back 1 or 2 units, then I have to spam Phantom just for the res. One horrible battle took 20 turns of nothing but phantom ressing.

Are there any re-balance mods that would make things better? Something that would fix ridiculous resistance level abuse (make them stack multiplicatively I guess) while buffing much weaker units up to par?

A few unrelated questions:

How useful is focusing on your pet long-term? Not being able to use the him during boss battles seriously sucks. I enjoy spamming dragon dive every other round . This would also seem to screw over warriors...

Is there any way to carry over medals to a new playthrough, or otherwise mod the requirements to be much lower? Specifically the bottom row ones are horribly grindy, the top row ones seem good and balanced.

How the f**k do you deal with goblin shamans? Here I am taking on lethal/impossible enemy armies without a scratch, then a "slightly stronger" orc mob with shamans takes out an entire stack of units or more on the first round. Is there some trick to them or did whomever was behind the balancing of crossworlds have absolutely no sense of game balance at all?