Arduino laser tag

A friend and me were thinking about making a laser tag game with arduinos for a school project. Does anyone have tips or things we have to keep in mind?
We were planning on using an uno or nano for the guns' brains and transmit hits with ir.

Hello,
I just see your message from 2015...
Did you find something about Laser tag 2 protocol ?
I want to use the IRremote library, respectively IRRemoteESP8266.
I have to read and send ir packet.
Any implementation about the ir tags will be welcome !
Many thanks and best regards.
Best regards
Thierry