All your suggestions make the tactics ineffective. Anyone smart would trigger the tactics with no intention on following up, and then come back after the effects are done.
EDIT: Instead of just saying your ideas are bad, here are my ideas.
To pull tactics you need to be: A non F2P player, level 80, at least bronze rank. Any player that pulls tactics has the structure, tactic, and player account printed in chat. Guilds can ban accounts from pulling tactics on structures they control.
Does anyone have any other suggestions or comments on mine?