Feedback on recent Portal/Challenges changes

I understand portal had to be nerfed due to concerns of "exploitative" game modes that let people fast-track their progress for weapons.

 In doing this corrective action to mitigate fast-tracking weapon unlocks, you broke challenges. They do not progress. I suspect the back-fill of bots is impacting this. 

Furthermore I played 2042 because you could unlock everything if you didn't want to participate with other people. I prefer this as sometimes it's just nice to sit back and do what I want to do, without the sometimes often toxic chats and/or players not playing the objective. 

Aside from this the match making and squad is dated. You cannot have more than 4 people in squad, and if you have more than 4 in a party match-making only works for the 4 squad members. Anyone extra has to leave then join their party again. 
squads need to be adaptive. Default is 4, but if you have a party it can be bigger.