If we do make a change, I would vote to have dt commands work for friendly fields, and not for enemy fields. But we used to be able to guess at re-spawn time based on whether the hangar was on fire, or just smoking. If we modify dt commands, we should get the fire and smoke effects back.
In other words, I can get an accurate read on how much longer I have to wait for a friendly hangar, or ordnance bunker, etc to re-spawn. But for an enemy hangar, I can only estimate based on whether the first is burning hot, or spewing thick black smoke, or light smoke.