titanfall challenges

Why do you have to complete challenges to regein .I think its so stupid that I have to complete challenges in order to regein.  I am a 3rd prestige and I had to spend most of my time trying to complete the plasma rail gun challenge.  The gun sucks and they want me to kill 50 titans with it and every time I get the chance to kill a titan someone always steals my titan kill after doing all that damage. Yesterday I was counting every kill that got stolen from me then stopped counting after 30.  After getting so aggravated after dealing with all of that I have to complete the satchel charge challenge and get 50 kills with it. I was a level 50 and there was no reason for me to get kills or points or wining a game cause it didn’t matter(so In other words im running around the map throwing bombs cause wining didn’t matter). After trying to only get satchel charge kills I damaged my record so bad that its not worth me playing anymore because of those stupid challenges I did damage to my record that can never be fixed.(last I checked that’s why people play and regein is because of there score). I did terrible every game cause it didn’t matter how many kills you get cause you wont regein without the challenges being complete. So what would be point of me even trying to win.  So how many games have I ruined for people that where trying to win like your supposed to because of the challenges I couldn’t play to win. So my point is that its so stupid to make people do challenges in order to regein because now none of the games matter anymore and scroes don’t matter anymore when people are only running around doing challenges.  Who ever thought of making it that way should loose there job.  Now after all of that aggravation I don’t think I even wanna play titan fall anymore because of the challenges and because how many other players are doing the same thing during games.  If I would have told other players what I was doing during the games they would have left or told me to leave cause there not gonna wanna play with someone who’s goal isn’t to win. So if there’s a lot of people doing the same as I was I’m not gonna wanna play with them(its like playing hockey not to win or score a goal but to brake a stick.  See how retarded that sounds that’s the same thing that’s going on in titan fall). I am not the first to complain about this and I know many of people that stopped playing because they only got titan fall to be competitive but after discovering that they see it cant be a competitive game cause of too many people that wont be playing to win because of the challenges.  I understand that if a person if gonna regein they got to be good but this is not the way to do it.  
Now after this I don’t even wanna play titanfall anymore and if I could return it I would