During missions, I've used melee with all survivors (except for the medic) for the past 20 levels or so. Equipping everyone with elite crafted long saws has done the job, easily. All of my survivors are lvl55, & they still use the lvl37 saws without fail. The saws have a range of 4, making them a far better reach than other melee weapons, & the knockback of 30% means the standard hoard will barely touch you. The icing on the cake is you barely use ammo...and all my saws are older ones too, never upgraded, & made before crafting kits were added. Crafting newer ones, with added Brawler kits, & fully upgrading them would be cherry.
Now for the elite fight: All the melee survivors will automatically pile on the elite, but the elite infected will only target a single survivor next to it. So, watch your health bars, & move the melee survivor being attacked out of the fray as they near 50% health, then heal them. The elite will then turn to attack another survivor next to it. Your healed survivor will automatically run back to the fight, so then pull the freshly injured one back out...and repeat.
Your medic needs a ranged weapon, to stay slightly back at a distance. You'll have 4 survivors tanking the zombies, with one engaged with the elite at any one time. The other three will attack the elite too, also turning to kill anything else wandering in, all the while the medic shoots like mad, standing away from the fight, providing rotating heals for whoever just went a round with the elite. Just rotate the heals & keep heat on the elite. Always make the injured melee survivors leave the mob one at a time for heals, NEVER send your medic into it. Just watch your health bars, nothing else, you don't even need to look at the fight, It'll throw you off.
If you're like me, you'll spread the survivors out during missions, searching 2 or 3 items at once. No biggie, but as soon as you here the elite spawn, you better cluster up lickety-split. Try to get in a corner, or off-center from two spawn points. You don't want anything coming up behind the medic.
It can be tricky during a rush, as you'll need to be quick, but it's a flawless system. Just make sure your medic has the fastest heal gear possible, & follow my instructions. You'll win every elite fight, even during a rush.
You may need to practice this technique, but you'll be unstoppable once you get it down, I promise.
Edited by LittleMrJ, 22 July 2016 - 02:41 AM.