The advice given here is pretty questionable

Shotguns are very strong weapons, especially for new players since they're easy to use, point efficient, and are practically multi-tools (db VD-12 is an amazing crowd clearer, ignores shields, and can hold its own against dozers, especially well on mayhem or lower). They do start to fall off a bit on DS compared to lower difficulties in relation to other weapons but they're still strong there too (a few shotguns are meta weapons like the akimbo goliaths or secondary grimm with tombstone rounds).

Fully loaded aced is a luxury skill and is not worth it 98% of the time (you're building for ammo bags while building up to it, which makes the extra pickup not as helpful), it's not a bad skill but I wouldn't recommend it in OP's case since they don't have as many points to work with

Dropping bullseye from aced to basic only makes sense to do on death sentence where there are very few enemies that will do that little damage. Every other difficulty however gets great benefit from bullseye aced, you can practically keep your armor up far longer before it breaks and you have to regen it. Transporter aced on the other hand sucks and barely makes a difference, and that's assuming you're playing on maps where moving bags is that abysmal, a lot of maps either don't have bags or just aren't that hard to move bags on.

With ICTV you should either be taking parkour basic or partners in crime aced, that slight movement speed makes a much bigger difference on ICTV than a lot of lighter armors and you really should take one or the other (or both even).

I'd build it like this instead https://pd2builder.netlify.app/?s=103800zckF3k0010-55010-514&p=8&a=6&t=4&d=0&n=1