Smoke levels are still obnoxiously high, but visibility now exceeds a mile, and breathing outside no longer results in feeling choked on stale smoke right away. In library life, we may also be emerging

This is strange. Necrons outnumbering Tyranids? I am playing 50 power level vs. 2x 25 power level detachments. My army list via Battlescribe is as follows: Battalion Detachment [50 PL, 6CP, 990pts]