I know that there were intentions of more than just orbital rounds as minigames, so here's a few ideas:
Scavenger Hunt:
Everyone has a limited amount of time to find props hidden around the map, kinda like a kids flash game. Every 15 seconds or so, a new prop spawns. This minigame could last around 5 minutes, and the top 3 players with the most props found gets a guaranteed drop, while everyone else who found at least one prop gets a chance at a drop. The props could also have a distinguishing glow or color to them, to make it a little easier on the players.
Hide N' Seek:
This minigame would work exactly how you expect it would lol. After preparing, the traitors are blinded for 30 seconds while the innocents hide, and when they're released they get a knife (obviously one with unlimited uses) They have until the round ends (5 minutes?) to find all of the hidden players. If they succeed, they get a guaranteed drop, and if they loose, the innocents get a chance at a drop (maybe around 33%).
Melee fight:
This one would be pretty simple: Everyone spawns with their melee (or the default one) and they just fight to the death. Last remaining players get a guaranteed drop (along with the players with the most kills to discourage hiding the entire time). This would last as long as the lives of the terrorists participating.
Melee fight (alternative):
This would work the same way normal melee fight would, accept everyone gets knifes (with unlimited uses) and a teleporter. (with LIMITED uses) This would be pretty fun to watch, because everyone knows there will be that one guy who only uses his teleporter.
Hunters vs. Prey:
In this minigame, Traitors will have only default rifles and pistols, and they'll have to defend themselves from the blood-thirsty crowbar terrorists. Traitors could also earn credits overtime (very slowly, maybe 2 credits per game) And the last 3 innocents will be rewarded with cloaking devices, and maybe full health. If the traitors win, they'll get drops (better ones than that of orbital rounds) and if the innocents win, they'll get a chance at a drop (increases depending on your place)
Gravity Round:
This minigame would play like normal TTT, except everyone would have anti-gravity similar to the effect's of a gravity crystal. (also maybe slightly increased end-round drops)
Juggernaut round:
This one would be similar to a boss round, except dumbed down and not as engaging. The traitors would have increased health (500-1000)and body armor from the start, but they'd be limited to using standard weapons (or not, depending on how it would play). They would also have a distinguishing feature to them, like a red glow or a juggernaut model (or both).
(Edit)
Hard mode:
This one would make TTT a little bit harder for both sides, especially traitors. If one traitor dies, the traitors lose. But, they'd have double the credits and they'd have increased damage. If the traitors were to win, they'd get alot better drops. If the innos win, they'd get a tiny bit better drops. This one would encourage teamwork among the traitors. Also, there would need to be at least 2 traitors for the hard mode round to start.
Chaos round:
A normal TTT round, except everyone would have doubled health, but decreased damage, plus 1-2 more traitors.Also maybe include some visuals, like everyone's on fire.
Chaos round [alt]:
Anyone can access the traitor menu.
Welp, I'm all out of ideas. let me know what you guys think.
Scavenger Hunt:
Everyone has a limited amount of time to find props hidden around the map, kinda like a kids flash game. Every 15 seconds or so, a new prop spawns. This minigame could last around 5 minutes, and the top 3 players with the most props found gets a guaranteed drop, while everyone else who found at least one prop gets a chance at a drop. The props could also have a distinguishing glow or color to them, to make it a little easier on the players.
Hide N' Seek:
This minigame would work exactly how you expect it would lol. After preparing, the traitors are blinded for 30 seconds while the innocents hide, and when they're released they get a knife (obviously one with unlimited uses) They have until the round ends (5 minutes?) to find all of the hidden players. If they succeed, they get a guaranteed drop, and if they loose, the innocents get a chance at a drop (maybe around 33%).
Melee fight:
This one would be pretty simple: Everyone spawns with their melee (or the default one) and they just fight to the death. Last remaining players get a guaranteed drop (along with the players with the most kills to discourage hiding the entire time). This would last as long as the lives of the terrorists participating.
Melee fight (alternative):
This would work the same way normal melee fight would, accept everyone gets knifes (with unlimited uses) and a teleporter. (with LIMITED uses) This would be pretty fun to watch, because everyone knows there will be that one guy who only uses his teleporter.
Hunters vs. Prey:
In this minigame, Traitors will have only default rifles and pistols, and they'll have to defend themselves from the blood-thirsty crowbar terrorists. Traitors could also earn credits overtime (very slowly, maybe 2 credits per game) And the last 3 innocents will be rewarded with cloaking devices, and maybe full health. If the traitors win, they'll get drops (better ones than that of orbital rounds) and if the innocents win, they'll get a chance at a drop (increases depending on your place)
Gravity Round:
This minigame would play like normal TTT, except everyone would have anti-gravity similar to the effect's of a gravity crystal. (also maybe slightly increased end-round drops)
Juggernaut round:
This one would be similar to a boss round, except dumbed down and not as engaging. The traitors would have increased health (500-1000)and body armor from the start, but they'd be limited to using standard weapons (or not, depending on how it would play). They would also have a distinguishing feature to them, like a red glow or a juggernaut model (or both).
(Edit)
Hard mode:
This one would make TTT a little bit harder for both sides, especially traitors. If one traitor dies, the traitors lose. But, they'd have double the credits and they'd have increased damage. If the traitors were to win, they'd get alot better drops. If the innos win, they'd get a tiny bit better drops. This one would encourage teamwork among the traitors. Also, there would need to be at least 2 traitors for the hard mode round to start.
Chaos round:
A normal TTT round, except everyone would have doubled health, but decreased damage, plus 1-2 more traitors.Also maybe include some visuals, like everyone's on fire.
Chaos round [alt]:
Anyone can access the traitor menu.
Welp, I'm all out of ideas. let me know what you guys think.