Is it a bug in ATF v1.05?

[hitbell]

I found something very strange When I was playing the ATF 1.05v,Death Valley Attack, Today.I do not know whether it is a bug as I am a new player.Now I describe it below:
(1)when I gave C/2-8CAV Company an attack by fire mission,it moved to the ABF position.When it reached the minefield it turn right and bypassing obstacle.After it had bypassed the minefield,it gone on.Normally it should be moving straight to the ABF position,but in this moment it turned right again and seemed to bypassing something,and this process repeated ,the waypoint look like Z then it climb up to the mountain on its right hand.It would not stop until it was boxed up by the mountain crest.
(2)When the leader of the company was destroyed,another strange thing happened.The hierarchy disappeared yet the flag marked C still moving around the battlefield 4 or 5 miles away!
(3)Sometimes a message appeared telling me that the mission had been completed.Yet the company C/CAV had never arrived the ABF position.
The three cases that I meet confuse me.Still I love this game very much so I hope somebody can give me an reply about what happened to me.I can send some screen shots whoever request.