Conspiracy theory time. The only reason they removed the 113 was so wg could separate the tank's gun from the wz-120s top gun. Basically they said "fuck you enjoy your stock grind or give us money for free xp."
Hm, so every time I get something new from gacha I get a fair bit of lag before the animation starts playing (before the first one if 10-roll). Which would suggest that the game gets back info about what you get first and then displays it in random order(?) or with a "yup, it's a gold card after all" variable, for example:
Got her from a ticket, and it was a 3* assasin card at first, then started changing.
The more you know...