[ptvolly]

What state are you (your brother) in? A lot of states have a rule of 360 degree visible warning. Most likely you can get by with it depending on your state and the department he will be running for.
It's a lot more expensive, but the more LED used, the better. If he's (you) aren't planning on having an actual lightbar of any kind, I wouldn't mess with strobes at all. Why? Because of the following:
**You have to drill (usually 1") a hole in your light and have to seal it well to keep out moisture. Not a huge deal, but a PITA if he gets rid of the truck
**about 98% of strobes need a seperate power supply, just add's to cost and wiring.
**strobes do burn out and fail (not as much as halogen, but more so than led)
I haven't done anything to the Titan, but have had emergency lights on several other vehicles and still work for a fire department where we replace haologen and strobe bulbs constantly, but never mess with the LED's.
check galls.com for some idea's, then search on ebay... they don't allow red or blue to be sold, but if you find what you like, email the seller as most will arrange the proper color's.
PM me if you have some more questions....