Guy thinks he can click an entrenched mech tank out of a marsh tile with these divs lmao
you can. you might not like the result, but you certainly can do it.
Especially considering you're also passing up on premium support companies like Signals
does mp really rely on reinforcement enough for signals to be worth your time? they're a complete meme in sp, but maybe it's too hard to compensate for lacking them when you can't pause?
the other potential benefit is coordination, but i'm not convinced this is consistently useful. if opponent is roaching it might even be counterproductive. it depends how much damage you're gaining by concentrating attacks too. coordination is meaningless vs 1 division, and a lot more meaningful when hitting large division count with attacks < sum total of defender defense than when your total attacks >> sum total of target defenses anyway.
i'm not saying his design is a good alternative, but competition in support slots can be pretty fierce. flame tanks, shovels (to reduce terrain penalties), logistics, quite possibly aa, maybe recon (for speed in rough terrain, harder to react)...then you have to napkin math whether signals are likely to outcompete support arty too. also assumes you don't want or need maintenance.
There's also the consideration that 15w does far worse in practical combat situations than a 45w.
that depends on doctrine and target. the hypothetical you give favors 45w. if you're instead attacking infantry with poor attacks (struggle to damage smaller width too) and are running superior firepower, there's a non-zero chance that smaller divisions get benefit from more total org while also dealing more damage and taking either no more or barely more.
you do run into issues getting clicked by opposing tanks, though given that even 42 to 45w will likely have lower def than tank attacks by a margin as well, mileage may vary even there.
i am constantly told how much small width will bleed, then get 40:1 casualty ratio vs ai with 10w. in mp, small width tanks should be fine until someone clicks them. but we know that the tanks getting clicked on tend to lose. you can at least make a case that, for some doctrines, smaller width isn't *necessarily* wrong. if you win either way when clicking and lose either way when getting clicked, maybe the extra damage/width and faster beatdown on infantry is a worthy tradeoff for the slightly worse performance in tank click exchanges? maybe it isn't. but i think the loss of multipliers on the division due to picking mass assault will likely be more impactful than the width choice itself.
i still think some minor doing roach tanks in egypt that still technically count as infantry divisions would be funny though, and possibly pretty tilting.
Literally go watch a dankus soviet game, you will see no air most of the time
does that group ban log strikes?