Client.cpp find this:
Code:
void drawPlayerEsp

somewhere in body add following:
Code:
if (cvar.gaitsequence == 1)
  {
      DrawHudStringCenter(x,y,color->r,color->g,color->b,"GS: %i",vPlayers[ax].getEnt()->curstate.gaitsequence);
      y += ystep;
  }
  if (cvar.gaitsequence == 2)
  {
      char* g1 = "Standing";
      char* g2 = "Ducking";
      char* g3 = "Walking";
      char* g4 = "Running";
      char* g5 = "Duck-Walk";
      char* g6 = "Jumping";

      char* gSequence;
     
      switch (vPlayers[ax].getEnt()->curstate.gaitsequence)
      {
      case 1:
        gSequence = g1;
        break;
      case 2:
        gSequence = g2;
        break;
      case 3:
        gSequence = g3;
        break;
      case 4:
        gSequence = g4;
        break;
      case 5:
        gSequence = g5;
        break;
      case 6:
        gSequence = g6;
        break;
      default:
        gSequence = g1;
        break;
      }

      DrawHudStringCenter(x,y,color->r,color->g,color->b,format_string,gSequence);
      y += ystep;
      }

Register your cvars !
REGISTER_CVAR_INT( gaitsequence ,2)
Credits: G-D forum coders