The main issue for me of this list is that without
ML (or buffmander/farseer...), riptide dont do that much damage.
So you have one buffmander and quite a few pathfinders, but pathfinders die easily and once they are dead (T1 potentially) you have one riptide that will hurt and 3 that will run around.
If you keep them in reserve, the riptides wont do much at start.
So i would look for other
ML sources (marker drones maybe, a skyray instead of hammerhead...)
The main point with the 4 riptide lists (such as
NOVA winning one) is that you had buffmander with 2 riptides together already and the rest of
ML sources for the 2 other riptides.
4 riptide is not so frightening, 4 riptide with
TL and ignore cover is, so make sure they keep it