If it is equal or higher init I apologise.
Then the result is 6.5 to 5.2 - Still close.
The 5+ thing is a typo cuz of my phone. The maths is correct for a 4+ not a 5+. Sorry.
So its not a big ask to win that combat. The HE unit is also worth more points assuming three ranks on each side so if you do get the win and they break awesome. And if they stick around you can reform to also be 8wide and add extra attacks for the next combat round to help with winning the next round.