Although I concur that a +3 BS in a five man team is juicy and in TAK you can do it is cheaply to buf a Vet Kazak, there is an argument to be made for a Haris team over a full core team. - Maneuverability: moving 5 men on one order is pretty order efficient. But moving them across the battlefield might be hard with finding a save route and cover for everybody on the team. 3 men might move way easier across. Especially if they are made for doing objectives. In my own experience I prefer a 5 men team to go defensive, but a 3 men team to go offensive and cross the battlefield. With 5 men you might end up in a conga line, easy pickings for a blast weapon. - Limited Insertion. If you can bring only 10 men, it might be a smarter approach to make the team more diverse and stick to small link teams to have room for other units. Spetsnaz, Tankhunters, Dog Warriors and Antipodes are very juicy to just pass up on. - You are a crit God! +3BS is wasted on you since you can even roll the 2s when in a pinch.