-mega face palm
Ok father freaka sourus rex drops it in fire pits infected zone.
To grind fusion number for you need a friend or SOMEONE willing to do it and drop you off every single time then he leaves group
Then they have to go outside because samurai jack says so and then enter again and go all the way back to the lair
its quite easy for some people but to get heavy bio it could take over 3 hours.. or WAY more
Father freakasourus rex or whatever drops it in fire pits to but he barely drops.
Btw red bio aka heavy bioplasma cannon or w.e is rarest grindable in fusion fall only worth beta accounts no items.
And btw officer heavy bio isnt overrated barely no noobs have it or people who do not know what its worth have it..
Well actually back then noobs did have heavy bio and if you where lucky you could buy it off of someone for taros LOL,
But not anymore heh.
pics or it didnt happen :-}