Melee units of imperial guard/Astra Militarum
Hi. Astartes have power armor, genetically engineered superhuman speed, jetpacks and armored transports to deliver them into melee range, not mentioning terminators teleportation. Sisters of battle have repentia, penitent engines and power armors as well, and they don't care about casualties of two first things. Mechanicus have cybernetic troops who can move incredibly fast, have various forms of shielding. All points here have some means to close on in, and their melee specialist work in coordination with ranged troops. does Imperial Guard/Astra Militarum has any units, equipped and trained to work as offensive troops working in coordination with ranged troopers or leading their charge ? for example some formations of ogryn auxilia, or some regiment similar to Catachan, that their planet's gravity and environment turned them into deadly predators ?