Lockdown offers tight CQB across two levels, peppered with several windows offering limited angles on routes. Combat here is fast and furious; Assault is tasked with securing the Guidon flag on the opposing second floor platform, then quickly snaking back through to extract near where they started. Defense has several routes to watch, and usually must take the fight to Assault to be effective.
Concealing smoke is a double-edged sword in such close quarters, but can be useful in specific, coordinated strategies. Communicate with your team to know what routes you control and what you don’t for maximum effect.