Yes, making a role play story to explain parts of your character is all good and everything.. But NO story can justify the use of multiple hostile faction's equipment being used on the same ship.
IMG: Hostile to Outcasts. Spatial
BHG: Hostile to Outcasts
Outcast Tag/Rep: Hostile to IMG, BHG.
Merc ID: Doesn't seem to justify any of the stuff your doing..
Now.. Did you just slide IMG a bribe to let you dock and buy their ship with an Outcast tag? Same for the BHG? I think the IMG would've just shot you.. And okay, your OC tagged.. The other OC can still order you out and kill you if you refuse. The loadout and equipment your using justifies them in doing so.. I'd say it would be Out of Role Play for them NOT to have done what they did.
Furthermore, ID overrules Tag.. So you had an OC tag, but you ARE a mercenary. Using a ship and equipment from factions hostile to the Outcasts. Under any circumstances they should have shot you. And when you undocked.. Did they kill you? No. You yourself said they hurt your ship, but never killed it, so they did not break any rules. Nor were they out of RP, unlike you in this case.
And then.. You want to justify you spouting OOC chat all over system by saying your allowed to by simply putting OOC in the beginning of it? What your allowed to do and what you should do are not always the same thing. If you NEED to write OOC in system, okay. If you want to so you can complain about OORP whilst flying what you were, than that needs to go in PRIVATE chat. Better yet, you shouldn't be saying it in the first place..
Now as far as I see, the Outcasts could've reported you to the admins if they wanted to. Docking Malta in an IMG Spatial with Bounty Hunter Guild weaponry is definitely sanction-able. What they did is expected and within RP.
If you want to be in Alpha, get your ship and Equipment in check before you go back.
Now excuse me while I go write my Xenos character story about how I have a KNF Chimaera, Corsair Tizonas, BHG Buckshots, and an Outcast Inferno.