Examples:
Rock Katson on purposely named his gold 1911 Jade due to his strong friendship with her. Seeing her as a sibling. The pistol also has the foxes name on it along with the logo of her engineering company.(it's a green gear with a J on it) saying "With love from your best pal, Jade Marcus Foxston."
Flynn can find emails on computers and printed our paper that are sent to a person named O.V.W, O.V.W stands for Otto Van Walrus, who was the main antagonist of the original movie and went to prison as his fate. However in TimeZone, it is implied that he was given freedom if he joined and helped the US militarys Bio Chemical weapons. In which he gladly accepted.
There is a note on the NTPDs department door, Flynn can find that and it says this. "Hey Bob, we got a woman who I can simply say is this. A French conspiracy theorist Otter with blue eyes and a french painter hat who smokes Pot. She's a pothead and needs to be kicked out. Just because Marijuanas legal in the state doesn't mean she can smoke it all day infront of the NTPD. We need to do something about it Cheif, dont arrest her. Just kick her out of the area."
If Flynn has a fully mastered 1911 and is talking to Rock(if you have beaten the game and are replaying levels) Flynn will ask who Jade really is as he only knows the name and what she looks like, and Rock will tell him ALL about the woman.
When Swifty became Top Dog of the ABDS(Arctic Blast Delivery Service). He was invited by the SCD to become a Corporal. He refused because he had already spent to much time in the US Rangers.
Jade and Swifty are mentioned by Loners and loners are heard talking about how it's been 10 years since the brutal battle of the Arctic. And how Jade and Swift both ended it along with the ARC-Ops.
If you talk to Heather BurnMann while having the 1911 equipped. There are conversations in which Flynn mentions how Heather looks similar to Jade and Lt. Fox Vixen(referred to as Kat in TimeZone)
While Lt Vixen isn't a AD character. She is mentioned by SCD soldiers as the most unreasonably violent woman to ever be in the army. Especially for someone like the ARC-Ops.
In the multi-player, if you hold a Wrench and stare at a certain workshop in the map called "Snowfall"(a map set in a town in the Arctic), you will hear a flute that sounds extremely similar to the music heard int he original movie that plays in two scenes involving Jade, it is basically her theme(it also is heard in Rock Katsons theme)