The Package is in the Open Red vs. Blue : Season 1 Episode 5

As Donut, who the Blues assume is Sarge (as both wear red armor), escapes with the flag, Church fires at him with a sniper rifle, missing each time. Church then orders Tucker to cut Donut off by using the teleporter; when Tucker fails to emerge on the other side, Church pursues on foot. Meanwhile, having heard the rifle shots, Grif eventually spots Church chasing Donut and decides to back up his teammate with the Warthog.