Your Threats Don't Scare Me,Tyson Beckford Tells Chris Brown

Chris Brown had a meltdown Sunday after Tyson Beckford dared to post a pic of himself with Karrueche Tran, but Tyson made it clear, he's not scared one bit.

It started Sunday when Chris saw the pic, then posted a flurry of tweets, saying among other things, "U wanna keep walking them runways.  I need ta legs for that.  Keep playing like I ain't wit the bulls***."

Chris deleted the tweets, but Tyson fired back, seemingly impervious to the threats, saying, "It's all about fun in Vegas, come thru papa."

Tyson then posted video of himself shooting a gun range, saying, "Just in case your forgot!"

But Chris wasn't done.  Late Sunday night, Chris posted a pic of Vegas cops behind a building, saying, "This n**** Tyson got the whole Vegas PD out here.  Suckah!  This fruitz!"

Chris has been making a play to get Karrueche ever since she found out he had a child by another woman. 

Don't know whether this helps or hurts Chris' chances.