A valiant assault force does not fear a strong fortress.

攻坚不怕堡垒硬。

《新英汉大辞典》

He would be a short-sighted commander who merely manned his fortress and did not look beyond.

谁如果只守城堡而不往前看，那他就是一个目光短浅的指挥员。

youdao

If you build a Planetary Fortress you will not be able to use these new features, but your command center will be upgraded to Armor 3 and have a Ibiks Laser that does 40 splash damage with a 6 range.

如果你建造了行星要塞你就不能使用这些新技能，但是指挥中心的护甲会升级到3，而且具有轨道炮，可以制造40点溅射伤害，射程6码。

youdao

Former Sandhurst cadet and instructor Rory Clayton said the academy was designed in a university campus style to "give free movement to cadets" and was "not supposed to be a fortress".

BBC: NEWS | UK | Sun stunt sparks Sandhurst review

However, that's a measure of the hardware, not Team Fortress 2.

ENGADGET: Playing an actual game with Oculus Rift: hands-on with Valve's Team Fortress 2 'VR Mode'

Abdul Rashid Dostum -- who used the fortress as a headquarters but was not on the site when the revolt began -- toured the site Wednesday, saying the revolt had been a well-planned plot to kill him and other alliance leaders.

CNN: Taliban prisoner revolt crushed, cleanup begins