Today Valve confirmed that the Engineer class in Team Fortress 2 will soon receive an update. They've begun hyping its release by providing details on one of the Engineer's new unlockable weapons.

The Frontier Justice can be swapped into the Engineer's inventory in place of the standard shotgun. When an Engineer's sentry gun is destroyed, the Frontier Justice will earn bonus critical hits. They'll also get two bonus crits for every kill their Sentry makes and one crit for every assist. On the downside, the gun has a 50% smaller magazine than the regular ol' shotgun and doesn't get random crits.

The Engineer update is slated to go live on Thursday. In the days between now and then, more information will be released through the TF2 Blog.