Random thought that popped up when I was watching replay. What if we got some sort of air spring trap?
Net Trap
When a flying enemy got close, the trap will shot a net at it. The net will snare flying enemies up to 20 housing spaces in a tiny aoe (around small bomb area?), turning them into an immobile ground unit for 5 seconds. Afflicted unit will cause air defense to lose sight from them, but also become eligible targets for bombs (not spring).
Possible little details:
Could be unupgradeable.
Could be upgradeable to increase either duration or capacity.
Could have change to ground mode, in which it'll render the units immobile.




