I found out at my first tournament recently that Mathhammer attack volume means surprisingly little in an actual game.
Not because of luck; because of durability. If you have a massive line of fire warriors at the top of turn one, and DON'T get the first turn, you will most likely not have said line of fire warriors when your turn starts. You will have like 5. They die MARGINALLY slower than Guardsmen, but cost significantly more because of their better gun. Because our gunlines only work for their point cost when close to a Fireblade, we are very weak to chain-reaction type psychic powers... and psychic powers in general, really.
Also they are weak to anti-infantry, and almost all basic infantry in every army has anti-infantry weapons. They just... die. And unlike with a suit-based anti-infantry platform, every single frail dude you lose loses you firepower.
Consider this: It takes the same exact number of Bolter hits (not shots fired, I'm only talking hits) to kill a Crisis Suit or a unit of Fire Warriors with the same point cost as a single Crisis Suit, but the Crisis Suit only loses firepower when it takes the last hit, which means that the use of Saviour Protocols on a Crisis team makes a HUGE impact on 2nd-turn firepower whereas there is no efficient way of mitigating the loss of firepower on a Strike team. And that's if you leave your Crisis suit team on the board for the first turn (which you usually do not want to do).
That's the sort of thing you can only learn on the table, not so much in Mathhammer points-per-wound numbers.
Now if that all applies to Crisis Suits, what does that say about Commanders? At double the wounds of a Crisis Suit for only 24 extra points, they're even more durable, and can use Drones for covering hits even more efficiently. More importantly, though, they, like Crisis Suits, can deepstrike, leaving them invulnerable to getting yanked off the board turn one. This means you retain firepower to use on your turn. Between the difference in durability and the increase in utility overall, a Commander with BC is not an especially inferior choice to bullet-fodder Fire Warriors for relatively similar firepower.
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