...or the topic about "I'm firing with my heavy bolter. Oh, you charged me! I use my chainsword inmediately"
In the Deathwatch Rule Book, it's not said how much time did you spent on changing the weapon that you are using for another one. In other RPG like Dark Heresy or Rogue Trader, it says that you spent Half Action.
But, and here comes the problem, can you do this in Close Combat?
It's not strange that a Tactical Marine could drop his Bolter (Free Action) and then he pick up his knife, or even, his chainsword. But can also do this a Devastator? Could he drop his Heavy Bolter and pick up the knife in the same time? Or would he use the heavy bolter as a hammer?
I ask this because, if it's posible, a Devastator or a Marine with a Heavy weapon, whose weakness should be Close Combat while he has the heavy weapon, would disappear. They'd be able to use the weapon more useful in each situation. And even a Devastator Marine it's dangerous in close combat with a chainsword.
And imagine what would happen with an energy sword.
P.D: I hope you understood my English