The bellowing smoke would clear with an orange flame that roared forth.The mediocre bullets weren't even bothered to be avoided... Modern weaponry even in the hands of a Servant not containing enough Mystery to harm him. Shielding his face he'd watch the Assassin be mowed down by the barrage he'd set forth, but his gut told him this was too easy. Mounting his magical energy into his bow countless arrows began to manifest and take shape under Archer's command as he weighed his options. The azure tips cracking with magical energy it would make his previous volley paltry in comparison once released from the taut bowstring. 

Archer smiled as the less than fortunate guard's safety. The servant naturally put his master's safety first and foremost he hadn't hesitated when the innocent was going to be caught in the crossfire. One less bloodstain on his conscious made him feel his lips curl upwards with intrigue. What a polite and selective murderer. The twin blue daggers nestled firmly in Archer's skull quickly darted around the scene and assessed the aftermath. "[u][b]Hmmm.[/b][/u]" A fleeting streak of black was the only thing his sharp eyes needed to decide on his next recourse. Projecting in his mind's eye a complete map of the layout of the interior he'd reference quickly all the possible paths Assassin could have taken. Applying the approximate speed of Assassin he'd bring his aim to target every relevant corridor and passage that the assailant could be taking enroute to his Master. Human sharpshooters could track a target and make a precise shot. A feat within the realm of Mortals... This however was a Heroic Spirit with whom logic and mortal abilities meant nothing. 

"[u][b]Lets see what our little rat is capable of shall we?[/b][/u]" Stilling his breath the bowman would set his focus on every target he deemed to strike true. Esfandiyār would release the dam that was holding back the hail of arrows which harried into the sky like a blue tide and descended upon the Estate with overwhelming force. Assuming Assassin maintained the same swift speed through her entire trip towards their destination every corridor and path that could have been taken as she followed the "thread" would have a two meter in diameter hole open up in the ceiling. An Icy hell rained down from above at these points... A area too wide to merely rush past and vast enough that even if he was slightly off he'd still deal moderate damage to his quarry. These points would collapse almost immediately from the assault akin to tens of rockets going off in the building. 

The Invincible Archer felt his breathing resume as the carnage was cemented into the landscape. Nothing was certain in war so he wasn't about to get arrogant when he couldn't even verify his tactic. Vanishing into a golden mist the loyal knight would travel on the winds to Otto's side as the very structure of their estate was likely compromised. Reappearing in his full golden splendor walking alongside the bodyguards the Servant of the bow kept his eyes peeled and his instinct sharp as he waited for their invader to make themselves known, "[u][b]You'd best hurry along Master. I somehow doubt she'd be defeated even if we brought the building down on top of her.[/b][/u]" Ignoring the startled nature of the guards he'd keep his senses alert as they moved towards the evac point.