My experience with B-26, both The Wingless Wonder B-17 Variant and this The Marauder Strikes! has been that this game is very deadly. I don't know if it is because of the tables or if my dice are on the enemy's side. It is very hard to survive 5 or more missions, at least with my crews.
If you have any ideas on how to make this game less deadly, please let me know. I was shot down by flak today (http://boardgamegeek.com/thread/808601/forum-campaign-4-mission-96-montlucon) and am thinking about changing Flak To Hit values.