I often go through similar Q&A with a potential customer:

Q: Can I build a specific packet exactly, then vary this field(s) dynamically while sending it, and do it all with GUI?

A: Yes.

Q: Can I receive a specific packet type, analyze any of its fields, save fields values for future use, and ignore all other incoming packets, and do it all with GUI?

A: Yes.

Q: Can I build a specific packet flow exactly, and play it into my test network, and do it all with GUI?

A: Yes.

Q: Can I vary a packet flow logic dynamically, making decisions in run time?

A: Yes.

Q: Can I import this pcap (hex dump) file to create the test case with GUI tools only?

A: Yes.

Q: Can I create traffic load tests?

A: Yes.

Q: So, are you telling me Linkbit tools provide absolute flexibility for Mobile Core networks testing?

A: Yes.