tactical         
adjective uk/ˈtæk.tɪ.kəl/ us/ˈtæk.tɪ.kəl/
 策略性的,谋略性的
relating to tactics or done in order to achieve something
  It was a tactical vote. 这是一种策略性的投票。 
  (尤指核武器)战术性的
Tactical weapons are for use over short distances and, especially in the case of nuclear weapons, have a local effect only.