IMO there are 2 efficient way to use them in MSU context:
1- Naked in venom. You only take 2 squads and the remaining venoms come from the Fast attack slot. When running this you keep your venom at max range and you use your kabalite to hide out of LOS (preferably on an objectif) or as sacrificial units to pull an opponent off an objective (or any other non offensive use)
2- With a blaster in venom. If you have enough points, throw in a Sybarite with a HWG. This is more expensive so you cannot afford to stay at range, you need to make those blasters earn their points. When I run this I move everything forwards to force target saturation (this works well with Grots and Reavers). I know people are not fans of Sybarite and they are pretty good at wrecking vehicles (especially a clubmates' obelisk). The key here is to have at least 4 of these units. If you only want 2 you're better with option
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