By no means am I a supper crazy good player but here are the methods that I find to be the most effective ways to defend the money ball against juiced players and in over time. The Assault is in my oppinion is a great defender(maybe even the best) against juiced players mainly because of the charge grapple throw. the charge makes the grapple super easy and the throw just adds on to the recovery time and can also get that kill if aimed right. The bomb can also help to disoriant enemies. Support Air Strikes as we all know are an instant kill and a carpet bomb of three air strikes will easily kill at least one of the attackers. Fire base and hack... 2 or 3 3:3 turrets can make quick work of even the strongest juiced players (that is if your lucky enough to have 2-3 turrets) if not a juiced shotgun works wonders and remember secondary attack to shotgun is grapple if you can land it use it. Gunner: slam the knock back and slowing effect can quickly put some of the pressure off the money ball and the slowing effect will give your teammates some pretty easy grapples. a juiced duel minigun can cut right through other juiced players Assassin don't waste your time on defence go kill the enemy money ball. Sinper: Ice traps, Ice traps plus head shots (note it will not kill them in one shot but it will do some serious damage), grapple, ice traps plus grapple all work wonders. however i believe the sniper is better off trying to kill the enemy money ball and not defending tank is better off on offence although the product grenade blind is very useful. please note if you are an Assassin, Tank, or Sniper it is normally best to try and take out the enemy money ball (because they are the most effective money ball killers) and leave the defence to the assault support and gunner (who are not as good at killing the enemy money ball) We all have are ways of handling sertain situations and if you have other methods please tell.
Tank's grapple is a throw, worth having him there for defense if he doesn't have enough money for juice. Charge is also useful. Though I agree, tank should be waiting outside of the enemy base with juice and railgun in hand.
There are ways to handle it however it puts you at risk, and I dont think most players [at the moment at least] are willing to play to win and go for the grapples/put themselves at risk of dying, in order to stop the juiced player. Grapples are key Sniper Tank, and Assault can send them right back where they came, or out of the ring.Assault specifically could knock them away, our out, with his bombs. Snipers specifically could have a trap up. Gunners and Supports have a long grapple so It will probably take away about half that meter. Assassin im not 100% sure of how much a backstab will do maybe 40%? but heck if you have help attacking you may kill it, not that I see most players doing it. Everyone has the tools to do it, I think people are worried about their precious kill death ratio that they cant take one for the team, so to say.