Wasn't 6 the adamantium type?
The unit that got its hitpoints uberized this time was a Thorshammer lynx, with medium armor.
Well, here's the coordinates for each armies box:
First: (475,152)->(511,166)
Second: (451,96)->(485,105)
Adding +31 and -1 to xs and ys creates differing effects.
And by ignoring y1, I mean the first army has units that go over 152 and the 2nd army has units that go over 96.
I consider the notation: MAP_RECT(x1,y1,x2,y2).