Hi :
First I have to ask , do you know how to solder ? This is important in this post . Even if you are not a master at it , you should know the basics at least .I won't make this a treatise or lesson on soldering . I do know some tricks I would like to share though . If your soldering iron has a reasonably good diameter to the tip base , here's something to think about
You can take a pin and chuck it it a modified soldering iron and use it for creating portholes and gun ports as well as vision slits in armor . It also works great for creating holes for spark plugs in those miniature engine blocks . You can carefully take brass wire ,bend it and cut it to shape and solder the other pieces you've cut and build a real metal fuel injection system .
On armor you can take all those gear baskets on the back of the turret and before mounting solder the joints for a nice strong basket .I have a WELLER unit with the rheostatic control that's numbered .When I solder etched brass I usually run with a setting of 4.5 .That's enough to heat the metal and cause the solder , by capillary action to fill the corners and make a very smooth joint
Now on other parts .Say you have a mine seeking unit . take brass square tubing and replace ALL the pieces with brass .WHY ? well , it will look great and it won't break if someone handles it !. You can keep the plastic kit rollers .The only NON-SOLDERED joint will be hidden by the rollers . There , that wasn't hard was it . For the car builder .You can create suspensions that WON"T break from the weight of the model over time .Door hinges and other goodies are possible too .
The thing is , with a soldering gun or iron , the other possibilities for stuff on or in the models are tremendous in scope . Don't be afraid to try it . You may surprise yourself as you pick up another new skill to be used for modeling . MODEL ON ! Tanker-Builder .