I would like to suggest stance commands so player can tell AI how to behave.
- defensive stance - AI will seek for cover, watch flanks, move from cover to cover, prioritise shooting enemies with grenade in hand (in reasonable distance)
- aggressive stance - AI will try to move as fast as possible (even if it means no cover), use grenades, low flank awareness, move and attack (?)
- mixed stance - mix of above stances
Those are just few ideas.