When I was shooting Homelander with an AK-47, I noticed that although he doesn't take any visible damage, the bullets still pass right through him as opposed to him blocking them. So I suggest checking out how the bulletproof ability of DC Power Pack's Superman works? Cuz he's able to block the bullets completely. Other than that though, I like how Homelander will eventually get visible wounds/bruises after taking a certain amount of damage, it's a very nice touch that Superman from the DC Power Pack lacked, as he could never get any visible injuries unless it's from fire damage. Cheers.