AT-SP

"'The AT-SP, is the most powerful walker ever constructed'-Sar'Gon a Imperial officer on Malis "The All Terrain Siege Platform (AT-SP) was a four legged combat walker used by the ground forces of the Imperial Military, the Blood Empire vanguard, and the Khoan Army Task Force. It was mostly used as a mobile weapons platform and for sieges and long running battles. It was first used at the Battle of Malis, and the Defense of Carlia.

Description
"'What is that thing!!!!' a random First Order stormtrooper on Malis "The All Terrain Siege Platform  was an imposing, supremely armored quadrupedal combat walker, that stood at a impressive  36.9 meters tall, it was the largest walker in the galaxy, it often required full escort  by AT-AT, and AT-BT's. It size made it a large target however, it was for psychological