As many of you know air is a popular option to attack economy, one criticism is that they are lower risk because they don't leave wreck unlike t2 or t3 attacks.
t1 bombers, and also seaplane/t2 bombers are extremely strong units on larger maps, let them remain strong but drop some reclaim to compensate.
This also adds a bit of skill in self d. T2 fighters and chainsaw will kill so quickly so often they won't leave debris, but t1 figs and lighter aa will.