Re: AVENGERS: Grade, Reviews, Discuss, DVD & Sequel **SPOILERS**
.50 Phalanx or basic high-rate-of-fire anti-aircraft cannons would have chewed through the Chitauri invasion force with more than enough force.
I know it takes time to mount those and it would have been inpractical in that situation, but point them at the wormhole and those worms would have been the only real problem, but lacerated so badly they'd be slowed down.
Okay lets take this real world. A few years ago a National Guard M-60 tank used for armory weekend drills was stolen from a San Diego National Guard armory. After that happened the tanks, PCs and self propelled guns were taken out of the armories and sent to NG camps and regular army forts . In this situation by the time the National Guard or the regulars from Fort Drum got their gear and deployed we would have been a long way from just trying to hold the breech point.
I'm not crazy! All I Really Need to Know I learned by Watching The Wire