I think dragging a teammate out of fire would be cool, but it opens up a can of worms... if this gameplay was added they would also have to add ragdoll physics to playermodels, and the studio already stated they don't plan to change the hitboxes they had in PlanetSide.
Without ragdolls it might work but it wouldn't look right, which is why the majority of MMO developers don't have them in their games.
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