Most of the time in Shatter, there is 60-90% focus on Ice and 10-40% focus on kills, but sometimes a group is feeling particularly bloodthirsty or the ice spawns put them at a large disadvantage without kills and then they go ham murdering. Just know that the main points of all PvP modes are usually 1) Secure Objectives and 2) Don't Die before 3) Kill People. I freelanced yesterday into a IF group that was extremely bloodthirsty and massacred the opposition with moderate Ice points for the win. One guy had 83 assists (I only had 24), but usually I end with around 12 and see highs in the 20s to 30s. Assists generally give you an idea of the total kills achieved by your team, but that's the bloodiest I have seen in a long while.