If the Arado (or FR Spit) did a proper run and rtb'd and sends in the film, he gets the pts for the mission. No more than one "recon pts" per target is awarded max but a side can send in more than one recon a/c if they want to do that. Just means less for fighter or bomber duties. Its the CiCs call. Its good tactics to send in 2, one as a backup, and thats mirroring real life missions in WW2. The shot down Arado is still worth pts to the Allies.