I am looking for a general idea of some good rule sets in the 15mm 28mm sci fi genre. I already know of Mantics offerings, 40k and Gates of Antares, but are there any other good ones in 28mm? As for 15mm I know of Hammer's Slammers, but little else. In both 15 and 28 I am looking for something with tanks and infantry, in large scale or large skirmish games, I think 10mm is a bit to small for me right now. Thank you for any suggestions that you might have!