Hi Shogun, welcome to the forum, glad you are enjoying the mod!
Re the Sturmtiger, thanks for the suggestion but we have plans for this in a new 4th Wehrmacht doctrine so will be saving it for that.
The large bomb scatter for the Arado is intentional as historically it was a high speed reconnaissance plane that was retro fitted with bombs making it quite ineffective at precision bombing. This is a reflection of the Wunderwaffe doctrine which was the Germans relying on super weapons to turn the tide in their favor. Some designs were spectacular successes, some were complete flops and others were somewhere in the middle like the Arado 234.
However we are looking to add the ability with the Arado to at least choose your angle of attack which should make it a little more useful for the player.