One thing to note about the Chrono Vortex, it has a chance to give back the stuff it destroys (very small chance and it's Hardcoded). Triggering a Vortex is hard to do in a Practical Situation since the game appears to detect when you're doing it intentionally, it doesn't want to give it you.
Yes, I'm mad enough to actually try to trigger the Vortex on purpose, not had any success so far. Even though there is meant to be a 20% Chance to trigger a Time Quake and 20% Chance to trigger a Vortex, neither have popped up yet.
@Zardac_the_GreatThanks to my moaning, they have patched the game in the respect of Chrono-Tanks. TIP: Assign Numbers to Chrono-Tanks (Up to 10 Tanks can have a number each), then Click the Number and then 'D' to Deploy the Tank to Teleport it. NOTE: My configuration has 'D' as Deploy, I don't know what they made the Default as for the Remaster, only that it was a Stupid Button. This should allow you to use 10 Tanks in quick succession on an area. If this isn't working, you will need to clean your Settings File (reset to Default, and Reassign).