Scouts are fun. Besides, most escape maps where the scout really helps you get ahead (Jurassic is a good example), nearly everyone dies anyway, so you're not negatively affecting your team anyway. The only map where it helps you get ahead and hurts your team that I can think of right now is moria, but we lose that 99% of the time anyway (the exception being fail zombies that manage to not get themselves killed).
"An Air Force A-10 Thunderbolt II flew a show of force and expended flares for emphasis over Salerno after enemy forces attacked a coalition forward base. The arrival of the aircraft prompted an immediate retreat by enemy personnel."