I understand that, with melee weapons, the guns in third person view share the same single dot targeting reticle. However, at least with Arma 2 there was more to the third person targeting reticle, and at least for myself, I got used to shooting in third person decently well.
However, we're on a new game, we don't need to leave in lazy mistakes and poor design that's been here since base ArmA 2, and as far as I know still exists in ArmA 3. Just like not being able to actually run up a hill, or briskly crouch walk up a hill; this is something that needs to be fixed. If the third person target reticle needs to be off-set and isn't in the middle of the screen, so be it. Having a completely inaccurate dot, in relation to your iron sights or scope attachment, on your screen while trying to use a gun in third person is useless.