Let's be crystal clear right here and right now:
Possession and use of ANY radio apparatus not specifically certified under Industry Canada's RSS-210 (as license-exempt) or under RSS-119 (with a license issued by IC) on FRS/GMRS frequencies is contrary to s.4.1 of the Radiocommunication Act.
The only "approved/legal" radios for FRS/GMRS are indeed those blister-packaged ones you find at Wal-Mart and Cdn. Tire, etc. That being said, it is not practical for IC to go after everyone using one of those imported "amateur-type" radios on the FRS/GMRS allocation. So unless you decide to deviate from those frequencies and go off looking for your own "clear channel" which may in fact not be clear at all and thus quickly attract IC's undivided attention by causing harmful interference to someone else, your chances of getting caught with a non-approved radio strictly on FRS/GMRS are somewhere between slim and none.
Now then...back to your radio:
Your MOT HT1250 radio does
not have a front panel program (FPP) option available for it so it MUST be programmed entirely via Motorola's CPS software, which you've stated you have someone doing for you. The problem for you w/respect to CTCSS tones is that along with the FRS/GMRS specific frequencies which need to be placed into the radio's codeplug, you may only specify one out of the available forty-two "PL" (Mot-speak for CTCSS) tones at a time on a per-frequency basis. Unlike amateur radios, of which all these imported Chinese "Kenwood clones" (Woxoun, Puxing, etc.) are, you cannot simply change the CTCSS tone at-will on the fly with your HT1250.
It must be pre-programmed for each frequency listed in your codeplug. If you need to change a tone for a particular frequency, you need to have the radio re-programmed. NOT very convenient but...
...Commercial radios intended for the land mobile (non-amateur) service were never authorized by Industry Canada to have direct frequency entry and control of radio programming features such as CTCSS tone select. FRS/GMRS has a slight exception in that CTCSS tones are accessible to the users but the frequencies are "channelized" rather than allowing direct entry. This was done to force responsibility for proper radio provisioning and a significant level of accountability to the regulator onto the radio suppliers. This prevented the largely ignorant (of radio spectrum) radio users from being able to, among other things, arbitrarily dial-in a new operating frequency of their own which obviously would create no end of interference problems for both the regulators and for other licensed users. There are radios where this front panel programming and control capability was part of the design and the radios were certified for use by IC. However, authorization for possession and use of these types of radios was severely restricted and limited to special cases such as public safety, government, etc. Your HT1250 is not among those types of radios.
About CTCSS:
Your assertion that, "...many more intermingle..." belies your lack of understanding or knowledge about two-way radio. Your HT1250 was manufactured by Motorola and as such, will only use CTCSS or PL tones if you prefer Motorola's vernacular, which they support. You can find a list
here if you're interested.
AND FINALLY, as Drake has already put it rather well, the manufacturer's differences combined with the inconvenience of programming/changing CTCSS simply out-weighs any real benefit to using it in the context of airsoft games. CTCSS was designed to allow
multiple and different users to tx/rx on the same radio frequency without necessarily having to endure each other's transmissions. In airsoft, entire teams are typically assigned a single FRS/GMRS radio channel or set of channels - there's enough available. Therefore, the only people you're going to hear are your own team mates so tone coded squelch becomes rather irrelevant at that point.
Just have your radio guy correctly program the FRS/GMRS frequencies into your radio and leave out the CTCSS tones. You will be happier that way.
"Ready...FIRE...aim!"
Fly