Damn near heat neutral, actually; the 2K has 17 heat sinks, so it can Fire its PPC and frog about with its jumpjets all day and never have a heat curve above 'next to nothing'. The LRM has a miniscule Heat profile as well, so an Alpha-strike and jump would, at most put out 14 heat, with 17 sinks to drop it down to 'slightly warmer'<br/><br/>Edit: Personally, I prefer the 2K version that was in the original 3025 Tech Readout; it simply swapped the AC/5 for the PPC, and added 2 heat sinks, so, while it ran hotter, it retained the SRM-2 and Medium laser for up-close combat, which the modern version of the 2K does not have.<br/><br/>Note; the 'old' 2K, in an alpha-strike and jump would hork out, roughly, 18 heat, and sink 14.