Didn't do it myself yet but I have two fortresses in the front with three beacons. Then only a few Neg Voiders which give the fotresses 100% resistance which is enough. I don't use that many chargors since my Karazons have a damage bonus themselves and dont get very much off the Chargors. Also do you know that chargors spit out some pfojectiles that boost nearby units attack rate when they turn fast from time to time? So Spacing them up really helps Karazons do more devastating damage. Also why is your main healing in the back? The Beacons there don't make much sense, get some Saviours I'd say and get rid of the beacons in the back. More Weapon power! Unlike the flash version Saviours don´t clunk up in the mobile version which makes them the best healing unit for me. Some Beacons in the front is still helpful. The normal Vira Unit is crap, just compare the healing, it's almost nothing compared to Saviours or beacons.
Also do you use the Aim Skill? Helps your karazons focus on the boss.
Just some tips, maybe it helps, maybe not enough.
Oh, and here a pic of my base to show you what I mean. I'm still farming and leveling. The four Tytan Barriers in the front are only for SW Battles to reflect those Karazons and get me some more defense.
Yep, it's not that hard. I lost 2 Nyon Exists, but I had replacements in the bank and they're fairly easy and inexpensive. My greatest piece of advice is to use defensive abilities. With the drone's acting as a shield, you won't have a fun time hitting his base, and they will do a ton of damage. So do NOT taunt, and use decoy, gravity pull, emp drone, attack drone, guardians, and some others to draw his fire. Should be a game of healing and time after that.
uh I wouldn’t recommend aim, it’s hella buggy and kinda trash. just use lots of defense and a fully upgraded toxic cloud thing. also korazons are great. Make everything rank VII and put some neg voiders or beacons in there for beg resist. You also might want deflection.