Imp is a little busy with "REAL LIFE" right now. Can we get a little respect for our MIA brother? Let's try and resolve things without having to move into the "douche" territory. I think that's only mature, agreed?
Also, discretion has to be used for stated feats. Meaning, if the character is obviously capable of doing what someone stated they could do, then, yes, it's an "offscreen" feat that counts.
Otherwise, we have bullshit like Mace Windu not being able to use force push.
Riggs is obviously an "uber" military dude well versed in H2H, firearms, and so forth. A mile shot is easily done by most military snipers...much less some of their best. A mile long shot with wind is shit they train for. Why would an obviously "top-tier" soldier be any less? A mile long shot, with wind, is not really that big of a feat as it is far too "human". Who is his spotter, though? This is where we have to put into context such a feat: he obviously had a kick ass spotter in addition to a really friggin' steady arm. And so ends his feat: no awesome spotter present, no awesome shot.
To continue, I think Rambo solos...much less combined with Riggs. I do think that a solo Rambo would take a shot or two against Castle, but McClane really is the weakest here and is almost a non-factor.
As far as overall combat prowess, I rank them as follows:
Rambo - 9.5
Castle - 8.5
Riggs - 8
McClane - 7
Every point signifies a factor of 2.
Meaning, Rambo could take on two castles at once and it would be a tie.
Rambo could take on 5 McClanes and win but 6 would net him a loss.
This tiering is inexorable and cannot be argued with. 😐 (it's hard not to laugh at myself)
I would fit on that list as a 2 (Rambo could take on 362 of me, at once, and win). lol!