yes the repeat the same tacitcs for as long as they work but when they dont, the change and adapt to something new that might work or depending upon the situation they may go clandestine and use tactics not previously encountered by the enemy thus limiting their ability to respond or counter it. which you can do in chess to some degree but not nearly as well as in a real war scenario. CoD tries to reprsent taht random factor of war, which is why we all used unamed soliders in the past. In ghosts they tried to make it more personal by letting you name each solider.
Either way this has gotten far off topic, camping as it is in the game is not really a problem for the skilled player to do or to counter.
