Nice thought on Spike(Ranger) and Kira(Army) but you forgot another possible Prospect. Marcus(USMC Force Recon). Ryker, Spike and Marcus are well worth at least 8 minnows if not more. Lots more if we start from an ambush position with .308 or .338 not to mention a .50 BMG(weapons all 3 are familiar with if not expert) all of which are available from the local civilian gun shop. Also if Spike is right and a few of Ryker's team are local and Marcus can get us 1 or 2 more Marines, the minnows are swimming in a very small pond with Great White Sharks.
Also I see Stan vs Willie, Prez vs Prez and Ryker ripping vital portions of Bob's wind pipe out for the affront of touching Jessy and paybacks for Rin and Angelica.
As for Barb, NAH not I'm your Huckleberry, when Barb tells Dee, "I have you now you bitch, I have my daughter to back me up!" (Angelica) "You're a Daisy if you do!"
Write as much as you want.
You're missing two things a) that you always appoint all vets to the Rogues and b) that they even want to kill them from afair. Don't get me wrong, that is what I would most likely do killing from afair that your enemy never know who you where in the first place.
Yet, I don't think that this is Stan or Sluggos way. For Stan it is personnel (same as for Dee), therefore they won't kill from afar and thus all the 0.308, .338 or .50 won't do the job. If something would do the job, then it would be a small calibre, perhaps - even it it hurts me to say - a Uzi or any other submachine gun.
And if I would be the one who would write down how the Minions would go down, I would include some bomb attack on Minions property. Would look that they aren't collateral and it doesn't even need to be one that kills some of them as it would be more of the psychological as in "I can get you anytime I want" and "Should I open the door or does it makes boom?".


But neither is the mode of operandi I expect from the Rogue. I expect them to want a (very) personnel fight and that simple means that you can look each others into the eyes.