wrong nigha, he had his arms and still ran away from 4-Tails naruto fearing for his life
and he ain't wreck shit
he just manipulated the Sand village and even a Leaf Village far from its prime defeated Sand + Sound, lmfao
orochimaru ain't shit
By saying he didn't have his arms, it meant he had no access to handseals and all the techniques related to that. He didn't have his arms, and he wasn't afraid, he merely acknowledged the attack's power. At the end of the fight (if you actually read it), he expressed his discontent because he couldn't finish the battle. Why you ask? For one, he didn't have his "arms", two, his body started to reject him, forcing him into a bed-written state.
Now, for your statement regarding the Leaf, take a gander. For the majority of the fight with Hiruzen, he refused to physically involved, instead he wanted to break down his former master mentally by forcing to fight his former teachers. This means, for one, he didn't showcaze the things he could've, like Eight Branches. Had he went on the complete offensive from the beginning, Konoha would've perished.