General Tagge

General Tagge’s ability will not resolve if the card is discarded, as it is no longer in play when the appropriate timing window is reached to resolve its effect.

Reference

Each ship at the start of the rounds matching the tokens on this card, before the command phase, can choose to recover one discarded defense token. Note that this card ability does not “ready” any exhausted defense tokens.

In regards to Captain Needa and Local Fire Control, those cards “replaces” a chosen defense token, General Tagge cannot choose to recover any defense token replaced by those card effects.

In regards to Devastator, per the FAQ: “If this ship replaces one of its defense tokens (for example, using Captain Needa’s ability), its replaced defense token does not count as discarded. If this ship recovers a discarded defense token, that token no longer counts as discarded.”