Well, there are some Modells in the Game which are a little bit ineffectiv. The LI Captain is a example. I dont want to point my finger on the units i use in my game and cry, but i think it is a good Discussion to throw this in.
There are many Units in the Game with Shotguns only, and most of them are not able to defend themselve in close Combat, because they have no CC- capable Weapons. And Shotguns have a very Short range, you know.
The LI Captain has a knife, that means that he is able to make attacks in CC, others do not.
With the existing Rule (in the FAQ) that your Models may NOT use their Weapon as a club and use their ST and CC to fight, many of the Shotgun- only carrying Models are, lets say, kicked in the ass. Come Close, shoot your Shotgun, be in CC. Yes, you may break from CC, but fire a template Weapon into the Group of your own Models and Enemys? No Way!
And even IF they may use their ST in CC - a damage of 4 in Close Combat is not really good.