Tippmann quality, Licensed US Army product and an affordable price. Looks like they've hit a home run with the US Army Project Salvo. This AR15 style paintball marker packs alot of features for the $149 price tag. The Project Salvo is available in a semi auto or electronic configuration. If you buy the semi auto version to start, you can easily upgrade later. Tippmann included plenty of rails allowing you to attach any upgrades you may want scopes, sites, handles, etc. The included stock is adjustable, foldable and removeable if desired.
So if your looking for an entry level scenario paintball gun, take a look at the project salvo as well as the other US Army branded guns. You will get alot of bang for the buck as well as a pretty cool looking marker.