Well if this is to re create the VVS bombing campaign on the Karelian front during June 41 to September 41 would not the Pe-2 still be the more representative or the Su-2? (re skinned SBD?)
At that time the DB3 was being eaten up by the LW offensive (only 180 left by late 41)
In the first frame Soviets are tasked to bomb Viipuri which was in Soviet hands in the beginning of the Continuation War so...I was just making a general comment regarding the playability of the plane set. In the very beginning of the Continuation War Soviets actually used several hundred unescorted bombers (SB-2s and DB-3s) to bomb targets in the Southern Finland. This went on for couple of days. Finns shot down 27 bombers without losses and the bombings stopped. Probably partly due to the losses but mostly because they had other things to worry about. As you know in August DB-3s were used to bomb Berlin.
At the very beginning of the Barbarossa I've understood that the biggest bomber losses were suffered by SB-2s (destroyed on the ground/over run, etc.) as DB-3s were further away from the German advance largely due to their longer range.
As for your question, Pe-2 certainly wouldn't be an appropriate bomber in the beginning of the Continuation War. Il-4 would be the best compromise as it has more useful generally compared to the DB-3. Incidentally Finns did have trouble intercepting solitary Pe-2s with their slow fighters, but those Pe-2 were used for recon.
Il-4 were actually used in 'tactical' role by the ADD where they bombed the German side of the front before Soviet ground offensives. Admittedly this was done usually at night time.