Was doing bomb portion of SAM quest in Highlands. While waiting for a party, me (RDM30), another RDM30, and a THF30 found him and fought him. I had to tank, and he used this wicked AoE that made my max health about 1/3rd. I died >_<. After we killed the bomb 5 times, the THF said someone nearby spotted him. He used Flee and got their, and solo'd it. O_o
THF killed Tremor, not Rampaging, btw. For a while I thought I was just incredibly unlucky.