The new voicelines leave me very curious about the apparent connection the three of these have. Here is all the info we know so far - Omen and Viper are old friends. - Omen is the only one who calls Viper as Sabine, and that she once used...

In post-plant, if you know where your enemy does their line-ups from, you can (ironically) do a line-up with your E ability (ZERO/POINT) and disable the enemy's molly.