Just my personal opinion but I don't think the high rate of fire is necessary for this weapon. It's supposed to perform as a good mid-range contender, having the second longest range out of the racial rifle line-up but due to it's ability to charge and it's high rate of fire is capable at all ranges. This overshadows the Tactical Assault Rifle, which had it's clip-size, hipfire, rate of fire and range all cut in various different builds. The most recent of, 1.7, which saw a -huge- reduction in range.
Comparing the rate of fire in this video (mind the chatter, my voice cannot be heard in this video):
http://www.youtube.com/watch?v=OXeML0Zu9tQIt seems rather illogical to me that the weapon with the longer range not only has a faster rate of fire, a larger magazine, more damage per shot, a tighter hipfire but the ability to charge for x2.9 damage. The only thing that the Tactical Assault Rifle has over the Scrambler Rifle is the fact that it does slightly more damage to armor, but it's marginal given the damage values of the weapons.
Another important factor to keep in mind is that, given the rate of fire, you can fire off more rounds with a scrambler rifle than the Tactical Assault has in it's magazine before it overheats. Keep in mind that in this video, I am using a Templar Sentinel - which does not receive a bonus to the Scrambler Rifle.
Now, I know that the argument that the TAR is an emulator of the Scrambler and isn't supposed to perform the same but this is something I'm starkly against because I personally feel that each weapon should have it's own feel and theme. It shouldn't -just- be an under-powered version as this creates power creep. Much to the same argument, if this is the case, than the assault variants of all the other rifles should under-perform compared to the Assault Rifle, whereas they are comparable or even better in some areas.
IMO: The weapon needs a rate of fire reduction and perhaps some lower damage to compensate for it's longer range and ability to charge up. That or the Tactical Assault Rifle needs a major buff as to keep up with power creep. EDIT: This needs to be handled with a scalpel, however. Not the hammer that things have been nerfed with in previous builds.
ANOTHER EDIT: Despite popular belief, I am not using a modded controller in the video. I am using the standard Six-Axis DS3.