I have 4 HL tanks with IR and they work fine for what they are and outdoors on a bright sunny day 30-40 ft was about the average range for all 4.
Capture the flag in a timed situation is always a good one or just plain duking it out with 2 team's of 2.
The point is to have fun, some day I will save enough to upgrade all the tanks to a better system but for now I am having a blast (pun intended).
Tom