For the first week the drop chance of Treasure Maps was so awful that many of us had the hope that it will be increased on today's patch (2020-07-09).
After the server came up and doing exactly 60 minutes of farming enemy pools, I only got 2 Treasure Maps, so this Treasure Maps hunting is anything but entertaining, it is more the opposite one, it is frustrating, tedious and discouraging.
It is disheartening to such point that it makes you feel like you are just wasting all that time because there is no sense of advancement, no sense of feeling that with every enemy pool you defeat you are nearer to the goal of getting the Legion weapons.
I do hope you can do a live fix so getting the weapons from maps feels more entertaining than watching public TV.
Thanks in advance.