Depends on the kind of work you're doing, usually starts with 1 week then 1 month and permanent. But in some cases like incursions if you're caught its permanent from the get go.
10/10. Haven't got ban in my mini yet (Lvl 50 Paragon) but I've never crossed 2/2 for my main. Since you have R4s I'd advise 2/2, why risk it you know?
These kind of values will get you insta banned, I never go above attack 2 and def 2. Others do say 10/10 is fine or even till 40/40 but I have never gone past 2s.
I have been asking the same question too, but I'm not too sure. Saw someone on a different iOS website mentioning getting banned but they might've blasted through the sectors so again no clue. If anybody has any definite answers, do let us know,
What are the usual settings do you go with and a safe damage multiplier you'd say? I haven't gone past 2 and only use dumb enemy.
Also is it safe to use in solo incursions?