HALO is one FPS that really did introduce many new gameplay elements. It offers all that is said below and the modifications already in development look to refine and improve the "HALO experience" even more!
Forest environment for Blood Gulch: Jackal Shields added + motion sensor doors at bases added
This Looks Kool!
This Looks Bichen!
When I Play It Im The Only One That Can See It?
wTF?
I like it. It would make sniping across the Gulch more challenging too.