Not speculating on the identity of "aitch" yes, everyone, that's how you pronounce it...but *Kyle" the black C019 sergeant is DEFFO part of the OCG.
Reason? He's been at every raid, so knows what's going down, has lots of lingering shots after dialogue with central cast finishes and has been called by name by Arnott, Hastings and everyone else.
Also, notice the unnecessary little bits of extra lines he gets after his team let a villain "escape"...He's in on it for sure...and I'll bet YOU didn't even notice him
I pointed this out on here after last week's episode, he's got too much dialogue and screen time for him not to be a player.
Post 481
"I think the firearms officer is gonna have a part to play. After Corbett ran off following the stand off between him and Arnott, the firearms officer then had a short but totally unnecessary scene in the office with Hastings where he was telling him stuff the audience and Hastings already knew. They were on first name terms. I reckon he'll feature somehow. Or not."
I've given up speculating who, what, where or when H is. I thought it might be a deadline like H-Hour, D-Day etc but I'm not sure that would fit.