Although slower and more easily countered than the CSGO awp, the Operator can be a suffocating tool when properly supported. Even thought the most Op-dependent team was eliminated in the Open Qualifiers (TSM with Wardell), there were still plenty of talented users that showcased their skill in the first Group Stage. The list below compiles Operator kills and Chamber ultimate kills to rank the best snipers in the Group Stage.
The Undisputed Best
OpTic yay (Group B): 82 op kills, 26 ult kills, 108 total
The Rising Star Runner Up
XSET Cryo (Group A): 60 op kills, 11 ult kills, 71 total
The A-tier Best of the Rest
Guard Sayaplayer (Group A): 40 op kills, N/A ult kills, 40 total
LG bdog (Group A): 39 op kills, 6 ult kills, 45 total
Knights ban (Group B): 39 op kills, N/A ult kills, 39 total
SEN TenZ (Group B): 37 op kills, N/A ult kills, 37 total
NRG s0m (Group B): 34 op kills, 7 ult kills, 41 total
V1 penny (Group B): 32 op kills, 13 ult kills, 45 total
Rise Shanks (Group B): 24 op kills, 12 ult kills, 36 total
The B-tier Non-Crutchers
100T Asuna (Group A): 18 op kills, 1 ult kill, 19 total
EG Boostio (Group A): 18 op kills, 1 ult kill, 19 total
C9 leaf (Group A): 13 op kills, 2 ult kills, 15 total
EG jawgemo (Group A): 11 op kills, 13 ult kills, 24 total
Honorable Mentions
C9 Mitch (Group A): 7 op kills, 12 ult kills, 19 total
100T Ethan (Group A): 2 op kills, 19 ult kills, 21 total
Guard neT (Group A): 9 op kills, 3 ult kills, 12 total
Please note that this list is strictly sorted by operator kills and not necessarily by operator skill, and has zero relevance to rifling skill. A few players (such as XSET dephh) secured a few kills but weren't included for conciseness. Feel free to discuss accuracy and offer feedback.