C# List.ForEach(delegate(type t) and how to remove items as the list is iterated through -

This can be considered bad programming, but before .net 4, I used to make heavy use of code like this: / P>

  enemyList.ForEach (representative (enemy e) (e. Update), if (some condition) enemy list. Remove (e);});   
 Now, I am going through updating some old projects, and there are  lot  of the code that were later deleted because they Must have changed. Now, I have an extension for which I have permission to use the foray:  
  public static void ForEach & lt; T & gt; (This IEnumerable & lt; T & gt; sequence, action & lt; T & gt; action) {if (sequence == faucet) remove new logic ("sequence"); If (action == empty) remove new logic ("action"); Forchach (T items in sequence) verb (object); }   
 I know I can do this:  
  var index = 0; Whereas (index & lt; enemyList.Count) {if (condition) enemyList.RemoveAt (index); Other index ++; }   
 But some of them would be a pain to write in this way. Is there any way to add that functionality back, so that I can iterate over that list, go back and write and edit all those functions? I still consider myself a newbie for coding, and I can not understand it once. Any help would be appreciated!  
     **  *  **  *  ***  edit < Strong>   **  *  **  *  **  *   
 So I suppose That is it proves to be able to rewrite a lot of code. I have a lot of code I is out of a project:  
  gameplaycryin gameWorld.shipList.ForEach (representative (ship) { If (eS.originalShipsID == s.shipID) {if (! ES.Alive || eS .health & lt; = 0) {// This is a sinking ... string log = "0" + s.shipName + " All the crew and cargo were lost. "AddLogEntry (log); totalCrewLost + = S.current Crew; GameplayScreen.gameWorld.shipList.Remove (S);}}});   
 I was just hoping that not all of them have to be rewritten. That's why I give the time to update and change the code apparently. Thanks!   
 
 
 Use the  remove  method of the list.  
 You can re-apply the code to:  
  enemyList.RemoveAll (enemy => enemies; some condition);   
 Not only this  while  is better than loop, I argue that it is much better than the  foreach  method.