Rockstar sure is determined not to let you get bored with GTA Online. Not only are they dropping new Adversary Modes like there's no tomorrow, but they're organizing all kinds of week-long events to keep you occupied.

The previous event, which only ended yesterday, served to commemorate the all new Rhino Hunt Adversary Mode. The new mode pits one or two tank operators against a team of sticky-bomb wielding hunters zooming around in smaller but nimble vehicles.
The accompanying event doubled the RP and GTA $ gain on it and the new Till Death Do Us Part Adversary Mode introduced in the recent Be My Valentine update released earlier last month.
This all new event focuses on the good old Versus Missions introduced way back when the San Andreas Flight School update was first released.
Starting today and lasting all the way through the 10th, next Thursday, all Versus Missions (and there is a ton of them) will be rewarding double RP and cash for both the winning and losing parties.
Aspiring fighter-aces are also in for a special treat. While the event lasts, flying under bridges while playing in Freemode will also yield twice as much RP.
It might not seem as much, but for players who often employ the use of jets and are looking to rise in the levels, a little can go a damn long way.