in M3C's recent icebox match they played brimstone to counter the G2 comp which is triple sentinels (I linked the match below)
The triple smokes came in cutch for Redgar to hold down a site so i was wondering why not play Astra instead which could possibly give u 4 smokes to hold and u can use double smokes to deny vision for the enemy team when they move back like Redgar did with brimstone
I also think they can replicate other brimstones success Astra as well such as pull or concuss to stall the plant or hold backside players form throwing util. maybe its a braindead thought but i think if playing against g2 icebox comp Astra would be a better pick.