Is the us delta force like the American sas from the UK?
I would say yes, the Delta Force is a close American counterpart to the British SAS, and perhaps inspired to a large degree by the SAS.
American Delta force was betterd by S.A.S int he 60's and the S.A.S still help train Delta and Navy seals today.
Since the US Delta Force resemble the British SAS so much Does the Delta Force have a signature costume like the SAS's Black Kit?
The SAS is the most elite special forces group in the world. It has a mission success rating of something like 99% where as the US marines have a mission success rating of 76% delta force have a mission success rating of 86% But if you refer to the statistics package, perhaps the language R is worth a go.
ST6 was created by Richard Marcinko after a failed rescue mission of Navy SEALS and Delta Force in Operation Eagle Claw. This might imply that ST6 could be an "improved" version of the Delta Force in some respect. Also it has been a general knowledge that Delta Force was patterned after the British SAS and ST6 training is very much based on Delta Force training with a few extra tweeks. So technicaly ST6 are based…
british sas new zealand sas australian sasr canadas jtf2 canadas csor americas green berrets americas devgru[delta force] americas navy seals americas rangers americas marine force recon americas pg's[air force special forces] force 77[crappy] dutch marines germany'sgsg9 [dispaded] russias spetsnaz black berrets of france