Its really good too for letting you know where campers are, you can bet if theres a claymore covering an entrace there'll be someone camping in the building!
I'll let you know what the pro part is like soon, better be worth it!! It's the last perk that I have to get to pro level, I've only bothered doing it now that I'm 10th prestige.
The pro perk is pretty good; I took time and got it last prestige, depending on the game modes it does not take that long.
FFA and CTF are great for raking up the Siterep detonations, but the likes of domination or Demolition which I normally played nobody really uses them.
In CTF claymores will be all around the enemy flag, and TI's will be littered all over your flag (especially if you play against BoBs
), and FFA you need to just get the luck of the draw of people using them, but when you do you can rake up huge amounts in one game (can remember one terminal game I got 24, and the another 20 odd in the following Highrise and Underpass games; it was this bunch that helped me get it last prestige as normally I would get to around 80 and then prestige).
It does not make the footsteps as loud as I wanted, and it does not amplify all footsteps, for example on solid normal ground I could not hear people coming.
But on the likes of Scrapyard and Skidrow its great as parts of the ground is metal and you can hear people coming from a mile off.
The absolute best however is using it on snowy maps, you can hear them munching through the snow from a mile off, not only does it sound great, its a relaxing sound for some reason, but it also gives you a serious advantage.
It would be great to use on Salvage but I prestiged over the weekend and its going to take me another age to get it again.
With regards to getting it, as opposed to C4 I just used Semtex and hurled one in the room; often it got the camper and his Claymore.