Network Design With ASA5515 & 2921

[imranraheel]

I want to create a network design with the specified equipment's

ASA 5515

Cisco 2921

3750

Previously i was thinking to terminate Internet connection on ASA 5515 , with the specified design

Internet---ASA5515----Router----Switch----LAN

But now my Internet Service Provider is providing me internet over fiber & ASA doesnt have fiber module, is it possible if i can do this 

Internet----Router----ASA---Switch----LAN 

Where switch will route everything to router and router will route internet traffic to ASA and ASA would have gateway as Internet Gateway. 

[imranraheel]

Just to clarify , i want to do all the routing on Cisco Router 2921 and want to terminat MPLS connects on it as well. But want all the traffic to go out from ASA .

I want all MPLS traffic terminated on router and router decide is its for inside , for VPN or for outside to ASA.