Michael Krieg:
You only have three defenses, really.
1: Something solid between you and the gun: Preferably a mountain.
2: Never touch the bubble: With a Ferret's speed, staying away from LB-10's is possible, but sometimes the objective is inside the radius.
3: There's always a bigger fish: If you can't put something between you and the gun, and have to go inside the doom bubble, your best bet at living to fly back out is to convince the gunner that there's something better to spend his shot on every second that you're there. Otherwise you are relying on RNGeezus (All glory to his cubic goodness!) and GM fiat to live.
There are other things that can be done to contribute on the battlefield, especially in a roleplaying game that has room to let you do so.
Yes... combat on the field is hazardous... but there is really one solution to your problem.
Don't get shot.
It's an easy enough solution especially in a ferret because unless there is something else in the air faster than you (Aero?) you're moving a battleboard or two around and should be able to pick your moments.
If you get shot down, you picked poorly.
If you think in the box too much your problem doesnt improve much. You need to think out of it.
The extra armor is NOT for the LBX auto canon, not everything carries it. It's a common upgrade for AC/10s but the AC/10 was never a great weapon anyway, so it really needed that improvement if were being honest.
IF there are things on the map with an AC/10 then the Op Force is not using their opposition weight effectively and our side should have an advantage for that. Also if they're carrying an AC/10 and they're carry slug and shotgun rounds, that's at least 20 rounds of ammo spread over two locations looking to explode. Usually in the torso somewhere, and rear torso armor is always thinner, so those four small/2 medium lasers start looking more effective when the mech has less than half the front armor to defend against it.
If i'm being honest were never going to take something down by ourselves. We just have to pull our weight and since our force weight displacement is so small it's not terribly hard to do.
You wanted to mount RL10's which is a great idea. They let you exploit opening, and reach out to touch them to avoid short range fire power. It works.
I'm personally looking for heavier armor, because i know my play style, and will have to worry about other things like medium lasers hitting me.
On a ferret, a medium laser hitting you, everything feels like a rotor unless you armor up. Even SRMs start to look like heavy damage, yes they can take out the rotor, but more than half the time they're not. Taking a SRM to the side in some Ferret variant will bring it down just as fast as in the Rotor.
Regardless. You're citing issues i'm not clueless about, and if theres any arguement to be had, that's what the ejection system is for. If you survive the encounter... the financial loss of a feret is about as bad as the financial loss of an gauss rifle exploding. I'll send Bubba the bill and hopefully get a replacement.