Idk who exactly said the Yildirimhan missile is a complete scam but thats js a dumb statement, we have been working on hybrid and liquid rocket engines since 2010s, also there is a reason why we are rushing to build a space port in somalia, which is absolutly needed to test such a missile after all you dont want an ICBM failing its test and falling on ur cities or other nations, also we are more than capable of building such a rocket only thing we needed to develop was the engines and the fuel systems, yes these were not easy things to do but like I said before Tubitak and Delta V have been working on liquid rocket engines for a decade if not more. "In a research project carried by TUBITAK-SAGE, Turkey's first operational liquid fuelled rocket motor has been designed, manufactured and tested. The rocket motor uses hydrogen peroxide as oxidizer and hydrocarbon based chemical as fuel. Also some metal salts are added into the fuel in order to attain hypergolic ignition." we started working on hypergolic engines in around early 2000s this quote is from an article that was written in 2005.