Boot MacBook to Linux/Windows from TimeCapsule.
Apple TimeCapsule doesn't offer netboot/netinstall services. None of the essential requirements for such services like NFS (Linux/OS X), http(s) (OS X) or tftp (Linux/Windows) run on the Time Capsule.

You need Mac OS X Server, a NAS/Linux server or a Windows Server (I think some pimped Windows Client OSs will do it also) to accomplish this.