I was thinking about something along the lines of this for a setting I'm (supposedly) working myself.
Although I don't like LA so I was just going to use regular orcs and make their favoured class fighter, possibly give them martial weapon proficiency as a racial feat. Not that it would matter much seeing as 95% or so of them would be fighters and barbarians anyway. No need to remove the intelligence penalty, you don't have to be particularily smart to follow orders.
Their story being that they're the wild tribes of the mountains surrounding the goblin empire and centuries of conscription into the Goblin Imperial Army has instilled a sense of discipline and rigorous martial prowess so thoroughly in the tribes that it's become tribal tradition to join the Imperial Army.

Anyway... The homebrew looks nice, although if it's a subrace I personally feel the modifications are a bit extreme, unless it's some sort of genetic experiment or the like. Of course, that's just personal opinion